COLE-PARMER INDUSTRIAL CALCIUM ION ELECTRODE INSTRUCTION MANUAL
|
|
- Horatio Cross
- 5 years ago
- Views:
Transcription
1 COLE-PARMER INDUSTRIAL CALCIUM ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800) Fax:(847) East Bunker Court, Vernon Hills, Illinois Table of Contents
2 TABLE OF CONTENTS General Instructions...3 introduction...3 required equipment...3 required solutions...3 Electrode Preparation...4 Calibration Procedure...4 Measurement...5 measuring hints...5 sample requirements...6 units of measurement...6 Electrode Characteristics...6 reproducibility...6 interferences...6 temperature influences...8 electrode response...8 limits of detection...9 ph effects...9 electrode life...10 electrode storage...10 Electrode Theory...10 electrode operation...10 Common Measurement Problems, Simple Causes...11 Troubleshooting Difficult Measurement Problems...12 Some Questions Asked About Ion-Selective Electrodes...12 Calcium Electrode Specifications...14 Ordering Information Table of Contents
3 GENERAL INSTRUCTIONS Introduction COLE-PARMER INDUSTRIAL CALCIUM ION ELECTRODE INSTRUCTION MANUAL The Cole-Parmer Industrial Calcium Ion Electrode is used to quickly, simply, accurately, and economically measure calcium in in-line batch processing, control processing, or water treatment applications. Required Equipment 1. Cole-Parmer Ion Concentration Controller, Cat. No Cord with U.S. standard plug, Cat. No or cord with European plug, Cat. No is necessary. 2. Cole-Parmer Industrial Calcium Ion Electrode, Cat. No It is a sealed, double junction electrode which is easily connected to the Ion Concentration Controller with stripped wire ends. 3. Cole-Parmer Industrial Housings to protect the Calcium Ion Electrode. Contact Cole-Parmer to choose an Industrial Housing. Required Solutions 1. Deionized or distilled water for solution and standard preparation. 2. Cole-Parmer Ionic Strength Adjuster, 4 M KCl, Cat. No To prepare this ISA, add 298 grams of reagent-grade potassium chloride (KCl) to a 1000 ml volumetric flask about half full of distilled water. Swirl the flask to dissolve the solid and fill to the mark with distilled water. Cap the flask and invert several times to mix the solution. 3. Cole-Parmer Calcium Standard, 1000 ppm Ca +2, Cat. No To prepare this standard, add 3.67 grams of reagent-grade calcium chloride (CaCl 2.2H 2 O) to a 1 liter volumetric flask about half full of distilled water. Swirl the flask to dissolve the solid and fill to the mark with distilled water. Cap the flask and invert several times to mix the solution. 3 Table of Contents
4 ELECTRODE PREPARATION Remove the rubber cap covering the electrode tip. Gently shake the electrode downward in the same manner as a clinical thermometer to remove any air bubbles which may be trapped behind the calcium membrane. Prior to first usage, or after long-term storage, immerse the calcium membrane in calcium standard for thirty minutes. The electrode is now ready for use. CALIBRATION PROCEDURE This quick start procedure is designed to get the unit operational. To set alarms and relays, consult the Operator s manual. Standards must be made in the range of 0.01 to 1000 ppm, as the controller will not accept standards outside this range. 1. Connect the electrode with the stripped wire ends to the controller by inserting the center wire into slot #22 and inserting the outer wire braid into slot # Press the [Mode] key 9 times until the display reads [Configuration] 3. Press the [Cal] key. 4. The display should read [KB UNLOCKED]. Press [ENT]. 5. The display should now read: [LCD Contrast: 4]. Press [ENT]. 6. The display should now read: [Access Nr.: 0]. Press [ENT]. 7. The display should now read [Valence: #]. Pressing the [/\] and [\/] keys, choose the proper valence of the ion you are testing for. Press [ENT] (If the factory setting is already the correct #, press [ENT]). E.G. For Silver/sulfide, choose 1; For Sodium, choose +1; for Calcium, choose If you chose a valence which is different from the factory setting, the display will read [Reset ppm Cal?] Press [ENT]. 9. The display will now read [Scale: ppm]. Press [Mode]. 10. The display will now read [Configuration]. 11. Press [Mode] key 6 times. Make sure the display reads: [Termoc.: OFF]. If so, go to step 14. If the display reads [Termoc.: ON], go to step Press the [CAL] key. Press the [\/] key so the display reads [CAL TC: OFF]. The display will flash [UPDATE] and then read: [CAL TC:0.198%/oC]. 13. Press the [Mode] key. The display will now read: [Termoc.: OFF]. 14. Press the [Mode] Key 8 times. The display should read [ppm 5 point cal].(note: It is not necessary to do a 5 point calibration. You can calibrate from 1 to 5 points). Prepare 1 to 5 standard ISE solutions whose concentrations vary by tenfold. Use the 1000 ppm ISE solution as the stock solution. Use the serial dilution method for this preparation and add the ISA when required to each standard. 15. To start the calibration sequence, press the [cal] button. The display will now read [Cal Point Nr 1]. 16. Insert the ISE electrode in the standard with the lowest ppm value.(note: for best results, ppm standards should be used in the following order: {0.1, 1, 10, 100, 1000} 4 Table of Contents
5 17. Press the [cal] button. 18. When a stable millivolt reading is obtained, press the [ENT] button. 19. The display should now read [P1 Decade: 100.0]. 20. Choose the ppm range within which the standard lies using the [/\] or [\/] buttons. - select if the standard solution value is < ppm. - select if the standard solution value is > ppm. - and < ppm select 1000 if the standard solution is > ppm. 21. Press the [ENT] button. 22. The display should now read [P1 Value: (# selected in step 20)]. 23. Choose the actual ppm value of the standard solution by pressing the [/\] or [\/] buttons until the exact ppm value is displayed. Press the [ENT] key to confirm the ppm value. 24. The screen should read [CAL POINT Nr. 2]. If no further calibration points are required, go to step 25. If you wish to enter more calibration points, go to step If no further calibration points are desired, press the [ENT] button. The display will now read [End Point Cal?]. Press the [ENT] button once more. The screen will now display [Zr Pt updated]. Press [ENT]. The display will now read [ppm 5 point cal]. To display Concentration value, press the [Mode] key 10 times. To display millivolt signal supplied by electrode, press the [Mode] key once. 26. If further calibration points are required, repeat steps 16 through 25. After the 5th calibration point is confirmed at step 11, the meter will flash [chk cal pt] and then read [VALUE UPDATED]. Press the [ENT] key. The display will now read [ppm 5 point cal]. To display Concentration value, press the [Mode] key 10 times. To display millivolt signal supplied by electrode, press the [Mode] key once. MEASUREMENT Measuring Hints Check electrode slope weekly if not daily. Always use fresh standards for calibration. All samples and standards should be at the same temperature for precise measurement and below 40 C. A difference of 1 C in temperature will result in a 4% measurement error. All samples and standards should be at the same pressure for precise measurement. The sensing membrane is normally subject to water uptake and might appear milky. This has no effect on performance. For samples with high ionic strength, prepare standards whose composition is similar to the sample. Always check to see that the membrane is free from air bubbles after immersion into standard or sample. A slow responding electrode may be caused by interferences to the electrode. To restore proper performance, soak the electrode in distilled water for about 5 minutes to clean the 5 Table of Contents
6 membrane, rinse, and soak in standard solution for about 5 minutes. Sample Requirements All samples must be aqueous and not contain organics which can dissolve in the membrane or extract out the liquid ion exchanger. Interferences should be absent. If they are present, use the procedures found in the Interferences section to remove them. The ph range for the calcium ion electrode is Units of Measurement Calcium concentrations are measured in units of parts per million, moles per liter, or any other convenient concentration unit. Table 1 indicates some of the concentration units. TABLE 1: Concentration Unit Conversion Factors ppm Ca +2 ppm CaCO 3 moles/liter Ca ELECTRODE CHARACTERISTICS Reproducibility x x x x 10-2 Electrode measurements reproducible to ±10% of reading can be obtained if the electrode is calibrated every hour. Factors such as temperature fluctuations, drift, and noise limit reproducibility. Interferences Table 2 lists some common cations that, if present in high enough levels, will cause electrode interferences and measurement errors or electrode drift when using the calcium electrodes. Electrode drift and slow response could indicate the presence of high interferences from the ions listed. Soak the electrode in distilled water for five minutes, then for five minutes in calcium standard solution to restore proper response. 6 Table of Contents
7 TABLE 2: Concentration of Possible Interferences Causing a 10% Error at Various Levels of Calcium. Interferences (moles/liter) 10-2 M 10-3 M 10-4 M Mg x x x 10-1 Zn x x x 10-1 Ba x x x 10-2 K x x x 10-2 Na x x x 10-2 Ni x x x 10-3 Cu x x x 10-3 Fe x x x 10-4 Sr x x x 10-4 H x x x 10-4 Hg x x x 10-4 Pb x x x 10-6 Interferences (ppm) 1000 ppm CaCO ppm CaCO 3 10 ppm CaCO 3 Mg x x x 10 3 Zn x x x 10 3 Ba x x x 10 3 K x x x 10 3 Na x x x 10 2 Ni x x x 10 2 Cu x x x 10 2 Fe x x x 10 2 Sr x x x 10 1 H ph 2.4 ph 3.4 ph Hg x x x 10 1 Pb x x Table of Contents
8 Temperature Influences Samples and standards should be at the same temperature, since electrode potentials are influenced by changes in temperature. A 1 C difference in temperature results in a 4% error at the 1.0 x 10-3 M level. Provided that temperature equilibria has occurred, the calcium ion electrodes can be used at temperatures from 0-40 C continuously. Room temperature measurements are recommended, since measurements at temperatures markedly different from room temperature may require equilibrium times up to one hour. Electrode Response Plotting the mv potential against the calcium concentration on semi-logarithmic paper results in a straight line with a slope of about 25 mv per decade. (Refer to Figure 1.) Figure 1 Typical Calcium Electrode Calibration Curve electrode potential (mv) ~ 27 mv 10-fold change (ppm as CaCO 3 ) (ppm as Ca +2 ) Ca +2 Concentration (M) The time needed to reach 99% of the stable electrode potential reading, the electrode response time, varies from one minute or less for calcium concentration above 1.0 x10-5 M to several minutes near the detection limit. Refer to Figure 2. 8 Table of Contents
9 Figure 2 Typical Electrode Time Response to Step Changes in CaCl M to 10-2 M CaCl 2 electrode potential (mv) M to 10-4 M CaCl M to 10-5 M CaCl Time (minutes) 3 4 Limits of Detection The upper limit of detection is 1M in pure calcium chloride solutions. The upper limit of detection is above 1.0 x 10-1 M when other ions are present, but the possibility of a liquid junction potential developing at the reference electrode and the salt extraction effect are two limiting factors. Some salts may be extracted into the electrode membrane at high salt concentrations causing deviation from theoretical response. Calibrate the electrode at four or five intermediate points, or dilute the sample, to measure samples between 1.0 x 10-1 M and 1M. The slight water solubility of the ion exchanger in the sensing module, which causes deviation from theoretical response, determines the lower limit of detection. The theoretical response at low levels of calcium chloride compared to actual response is shown in Figure 1. To avoid formation of CaSO 4, the sulfate concentrations must be less than 5 x 10-4 M (50 ppm). To avoid formation of CaCO 3 or formation of the CaHCO 3 + complex, the ph of the solution should be less than 7, and the total carbonate/bicarbonate concentration should be less than 3 x 10-3 M (280 ppm carbonate). ph Effects The calcium electrode has an operating ph range of Use at other ph values can adversely affect the membrane. Hydrogen ion interferes with measurements of very low levels of calcium. Hydroxide ion will complex calcium ions. 9 Table of Contents
10 Electrode Life The calcium electrode will last six months in normal laboratory use. On-line measurement will shorten operational lifetime to several months. In time, the response time will increase and the calibration slope will decrease to the point calibration is difficult and electrode replacement is required. Electrode Storage The Cole-Parmer Calcium Ion Electrode may be stored in-line if the membrane is kept wet. For storage off-line, rinse and dry the calcium membrane electrode and cover the tip with any protective cap shipped with the electrode. ELECTRODE THEORY Electrode Operation The Cole-Parmer calcium electrode consists of an electrode body containing an ion exchanger in a sensing membrane. This sensing membrane contains a liquid internal filling solution in contact with a gelled organophilic membrane containing an calcium selective ion exchanger. An electrode potential develops across the membrane when the membrane is in contact with an calcium solution. Measurement of this potential against a constant reference potential with a digital ph/mv meter or with a specific ion meter depends on the level of free calcium ion in solution. The level of calcium ions, corresponding to the measured potential, is described by the Nernst equation: E = E o + S logx where: E = measured electrode potential E o = reference potential (a constant) S = electrode slope (~25 mv/decade) X = level of calcium ions in solution The activity, X, represents the effective concentration of the ions in solution. Total calcium concentration, C t, includes free calcium ions, C f, plus bound or complexed calcium ions, C b. Since the calcium electrodes only responds to free ion, the free ion concentration is: C f = C t - C b The activity is related to the free ion concentration, C f, by the activity coefficient, γ, by: X = γ C f 10 Table of Contents
11 Activity coefficients vary, depending on total ionic strength, I, defined as: 2 I = ½ ΣC x Z x where: C x = concentration of ion X Z x = charge of ion X Σ = sum of all of the types of ions in the solution. In the case of high and constant ionic strength relative to the sensed ion concentration, the activity coefficient, γ, is constant and the activity, X, is directly proportional to the concentration. To adjust the background ionic strength to a high and constant value, ionic strength adjuster (ISA) is added to samples and standards. The recommended ISA for calcium is potassium chloride, KCl. COMMON MEASUREMENT PROBLEMS...SIMPLE CAUSES? - NOT REPRODUCIBLE sample carryover? sample interferences or complexing agents present? contaminated reference electrode junction - SLOW RESPONSE (READINGS SLOWLY CHANGING) electrode poisoned by sample? - OUT OF RANGE READING electrode(s) not plugged into controller properly? not enough fill solution left in reference? electrode not in sample solution? air bubble on electrode surface? - LOW SLOPE OR NO SLOPE standards are old? contaminated? made wrong? sample ph has not been adjusted properly to operating range of electrode? air bubble on electrode surface? controller okay? not enough fill solution left in reference? failed electrode? - NOISY RESPONSE (READINGS RANDOMLY CHANGING) controller not grounded? air bubble on electrode surface? controller okay? not enough fill solution left in reference? 11 Table of Contents
12 - DRIFTY RESPONSE (READINGS CONTINUOUSLY CHANGING) excessive leaking at reference electrode junction? clogged reference electrode junction? sensing membrane poisoned by sample? temperature problems? sample too concentrated? sensing membrane needs conditioning? - INACCURATE (BUT CALIBRATION IS OK) standards are incorrect? sample is not ph adjusted properly? sample carryover? sample interferences or complexing agents present? TROUBLESHOOTING DIFFICULT MEASUREMENT PROBLEMS COMPONENTS OF THE ELECTRODE SYSTEM - CONTROLLER perform checkout procedure in instruction manual. - ION-SELECTIVE ELECTRODE perform electrode slope check, inspect for physical damage. Monitor leak rate on reference side. PROPER CALIBRATION - STANDARD(S) prepare fresh standards by serial dilution. - ph ADJUSTMENT adjust ph to operational range of electrode. SAMPLE VARIABLES - CONCENTRATION RANGE sample out of range? - PRESSURE wrong sample pressure? - TEMPERATURE wrong sample temperature? - ph wrong sample ph? - INTERFERENCES interferences in the sample? - COMPLEXATION complexing agents in sample? SOME QUESTIONS ASKED ABOUT ION-SELECTIVE ELECTRODES 1. How often do you need to calibrate? Recalibrate at least once a week, or daily if in doubt of your results being accurate or reproducible. 2. How long after being opened or made are standards good? The stock standard will last at least six months before discarding, whereas diluted standards treated with ISA/pH buffer should be prepared weekly. 12 Table of Contents
13 3. How do you store the electrodes? It is best to store them dry when they are not to be used in the next week or so. Empty out the filling solution in the gas-sensing electrode. For shorter periods, store in dilute standard approximating the sample concentration, and ISA/pH buffer added when required. 4. Can you do temperature compensation with ISE? Yes, it is possible, but somewhat difficult. First, you have to know the isopotential point for a given electrode system. Second, the concentration of the sample has to be similar in concentration to the isopotential point or else the temperature correction will be very inaccurate. Third, the temperature of the sample can not exceed the operational temperature range of the ISE. Fourth, very little isopotential point data for ISE s is available at this time. It is best to standardize and measure samples at the same temperature without using temperature compensation. 5. Can you do in-line continuous ISE measurement without treating the sample? Yes, direct measurement is possible in many cases without ISA/buffer addition to the sample stream. However, Fluoride, Sulfide, Ammonia, and Sodium Electrodes do require ph adjustment and must have ISA/ buffer added to the sample stream. 6. Which standards should be used with the ISE? The most obvious choice will be determined by what concentration units are desired (e.g. ppm as what?). Also, if an electrode is being used to measure another ion (e.g. sulfate with a lead electrode), use a stock standard of the ion to be measured (e.g. sulfate). 7. Why buy a combination electrode instead of separate ones? Advantages: no external reference electrode needed. more economical than price of both one less electrode to fit in the process 13 Table of Contents
14 CALCIUM ELECTRODE SPECIFICATIONS (MODEL # ) SLOPE 25 +/ 2 mv/decade REPRODUCIBILITY ± 4% INTERFERENCES Pb +2, Hg +2, Cu +2, Ni +2 TEMPERATURE RANGE 0 to 40 degrees C PRESSURE RANGE 0 to 30 psi RESPONSE TIME 95% response in 30 seconds STORAGE for in-line storage keep the membrane wet, for off-line storage rinse and dry the membrane, and cover with a protective cap CONCENTRATION RANGE 5 x 10 6 M to 1M 0.2 ppm to 40,000 ppm ph RANGE 3 to 10 ph RESISTANCE 100 megaohms CARE, MAINTENANCE, treat with distilled water & CLEANING followed by calcium standard TEMPERATURE COMPENSATION Yes ISOPOTENTIAL POINT 1 ppm calcium ON LINE CAPABILITY Yes APPLICATIONS: Water Softening Systems, Drinking and Mineral Waters, Blood Electrolytes/Clinical Analysis ORDERING INFORMATION P/N DESCRIPTION Ion Concentration Controller Cord with U.S. standard plug Cord with European plug Industrial Calcium Ion Electrode, sealed, double junction electrode which is easily connected to the Ion Concentration Controller with stripped wire ends. Cole-Parmer Industrial Housings to protect the Calcium Ion Electrode. Contact Cole-Parmer at to choose an Industrial Housing Calcium Standard, 1000 ppm Ca Calcium ISA (Ionic Strength Adjustor),4 M KCl 14 Table of Contents
COLE-PARMER INDUSTRIAL AMMONIUM ION ELECTRODE INSTRUCTION MANUAL
GENERAL INSTRUCTIONS Introduction COLE-PARMER INDUSTRIAL AMMONIUM ION ELECTRODE INSTRUCTION MANUAL The Cole-Parmer Industrial Ammonium Ion Electrode is used to quickly, simply, accurately, and economically
More informationCOLE-PARMER INDUSTRIAL POTASSIUM ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER INDUSTRIAL POTASSIUM ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationCOLE-PARMER INDUSTRIAL NITRATE ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER INDUSTRIAL NITRATE ION ELECTRODE INSTRUCTION MANUAL GENERAL INSTRUCTIONS Introduction The Cole-Parmer Industrial Nitrate Ion Electrode is used to quickly, simply, accurately, and economically
More informationCOLE-PARMER INDUSTRIAL NITRATE ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER INDUSTRIAL NITRATE ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationCOLE-PARMER INDUSTRIAL SILVER/SULFIDE ION ELECTRODE INSTRUCTION MANUAL
GENERAL INSTRUCTIONS Introduction COLE-PARMER INDUSTRIAL SILVER/SULFIDE ION ELECTRODE INSTRUCTION MANUAL The Cole-Parmer Industrial Silver/sulfide Ion Electrode is used to quickly, simply, accurately,
More informationCOLE-PARMER LABORATORY AMMONIUM ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER LABORATORY AMMONIUM ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationCOLE-PARMER LABORATORY CALCIUM ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER LABORATORY CALCIUM ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationGENERAL INSTRUCTIONS GENERAL PREPARATION
GENERAL INSTRUCTIONS Introduction The Van London-pHoenix Company Ammonium Ion Selective Electrode is used to quickly, simply, accurately, and economically measure potassium in aqueous solutions. Required
More informationThe Cole-Parmer Ammonium Ion Electrode is used to quickly, simply, accurately, and economically measure ammonium ions in aqueous solutions.
Cole-Parmer Ammonium Ion Electrodes Instruction Manual GENERAL INSTRUCTIONS Introduction The Cole-Parmer Ammonium Ion Electrode is used to quickly, simply, accurately, and economically measure ammonium
More informationGENERAL INSTRUCTIONS GENERAL PREPARATION
GENERAL INSTRUCTIONS Introduction The Van London-pHoenix Company Fluoroborate Ion Selective Electrode is used to quickly, simply, accurately, and economically measure Fluoroborate in aqueous solutions.
More informationCOLE-PARMER LABORATORY NITRATE ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER LABORATORY NITRATE ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationCOLE-PARMER REPLACEABLE MEMBRANE CALCIUM ION ELECTRODES INSTRUCTION MANUAL
COLE-PARMER REPLACEABLE MEMBRANE CALCIUM ION ELECTRODES INSTRUCTION MANUAL GENERAL INSTRUCTIONS Introduction The Cole-Parmer Calcium Ion Electrodes are used to quickly, simply, accurately, and economically
More informationThe Cole-Parmer Nitrate Ion Electrodes are used to quickly, simply, accurately, and economically measure nitrate in aqueous solutions.
COLE-PARMER NITRATE ION ELECTRODES INSTRUCTION MANUAL GENERAL INSTRUCTIONS Introduction The Cole-Parmer Nitrate Ion Electrodes are used to quickly, simply, accurately, and economically measure nitrate
More information1) A ph/mv meter or an ion meter, either line operated or portable.
COLE-PARMER Sodium Ion Electrodes Instruction Manual GENERAL INSTRUCTIONS The Cole-Parmer Sodium Ion Electrodes are used to quickly, simply, accurately, and economically measure sodium ion concentrations
More informationCOLE-PARMER LABORATORY CUPRIC ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER LABORATORY CUPRIC ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationCOLE-PARMER LABORATORY CYANIDE ION ELECTRODE INSTRUCTION MANUAL
COLE-PARMER LABORATORY CYANIDE ION ELECTRODE INSTRUCTION MANUAL Cole-Parmer Instrument Company (800)323-4340 Fax:(847)247-2929 625 East Bunker Court, Vernon Hills, Illinois 60061 http://www.coleparmer.com
More informationUse a pipet bulb when pipeting cyanide solutions, as these solutions are highly toxic.
GENERAL INSTRUCTIONS Introduction The Van London Co. Cyanide Ion Selective Electrode is used to measure dissolved cyanide ion in aqueous solutions. *IMPORTANT NOTICE* Acidic cyanide solutions produce hydrogen
More informationC = concentration as ppm sulfide V t = volume of titrant at endpoint V s = volume of standard used (10 ml)
GENERAL INSTRUCTIONS Introduction The Van London-pHoenix Silver/Sulfide Ion Electrode is used to measure silver or sulfide ions in aqueous solutions. The two ions are virtually never present in solution
More informationS ENTEK Unit 6 & 7 Crittall Court, Crittall Drive, Springwood Industrial Estate, Braintree, Essex, CM7 2SE Tel: +44 (0) Fax: +44 (0)
150mV 300mV Mono/Reference Combination S ENTEK Unit 6 & 7 Crittall Court, Crittall Drive, Springwood Industrial Estate, Braintree, Essex, CM7 2SE Tel: +44 (0) 1376 340 456 Fax: +44 (0) 1376 340 453 Email:
More informationPOTASSIUM ION SELECTIVE ELECTRODE
Instruction Manual and Experiment Guide for the PASCO scientific Model CI-6733 012-06614A 9/97 POTASSIUM ION SELECTIVE ELECTRODE 1997 PASCO scientific $7.50 10101 Foothills Blvd. P.O. Box 619011 Roseville,
More informationThe Oakton Cadmium Ion Electrodes are used to quickly, simply, accurately, and economically measure cadmium ions in aqueous solutions.
OAKTON Cadmium Ion Electrodes Instruction Manual GENERAL INSTRUCTIONS Introduction The Oakton Cadmium Ion Electrodes are used to quickly, simply, accurately, and economically measure cadmium ions in aqueous
More informationOperating Instructions for Ammonium ISE Specifications
Operating Instructions for Ammonium ISE Specifications Range: The Ammonium Electrode responds to uncomplexed ion activity over the range 1 x 10-1M to 1 x 10-6M. Linear detection limit is about 10-5M Interference's:
More informationCALCIUM SELECTIVE ELECTRODE
Instruction Manual and Experiment Guide for the PASCO scientific Model CI-6727 012-06601A 9/97 CALCIUM SELECTIVE ELECTRODE 1997 PASCO scientific $7.50 10101 Foothills Blvd. P.O. Box 619011 Roseville, CA
More informationphoenix Electrode Company CARBON DIOXIDE GAS-SENSING ELECTRODE INSTRUCTION MANUAL 1. A ph/mv meter or an ion meter, either line operated or portable.
phoenix Electrode Company CARBON DIOXIDE GAS-SENSING ELECTRODE INSTRUCTION MANUAL GENERAL INSTRUCTIONS Introduction The phoenix Electrode Company Carbon Dioxide Gas-Sensing Electrode is used to quickly,
More informationThe Oakton Lead Ion Electrodes are used to quickly, simply, accurately, and economically measure lead or sulfate ions in aqueous solutions.
OAKTON Lead Ion Electrodes Instruction Manual GENERAL INSTRUCTIONS Introduction The Oakton Lead Ion Electrodes are used to quickly, simply, accurately, and economically measure lead or sulfate ions in
More informationphoenix Electrode Company Silver/Sulfide Ion Electrodes Instruction Manual 1. A ph/mv meter or an ion meter, either line operated or portable.
phoenix Electrode Company Silver/Sulfide Ion Electrodes Instruction Manual GENERAL INSTRUCTIONS Introduction The phoenix Electrode Company Silver/Sulfide Ion Electrodes are used to quickly, simply, accurately,
More informationNITRATE ION SELECTIVE ELECTRODE
Instruction Manual and Experiment Guide for the PASCO scientific Model CI-6735 012-06616A 9/97 NITRATE ION SELECTIVE ELECTRODE 1997 PASCO scientific $7.50 10101 Foothills Blvd. P.O. Box 619011 Roseville,
More informationGENERAL INSTRUCTIONS GENERAL PREPARATION
GENERAL INSTRUCTIONS Introduction The Van London Co. Nitrogen Oxide Gas-Sensing Electrode is used to measure nitrite in aqueous solutions. The measurement is not affected by sample color or turbidity.
More informationphoenix Electrode Company Ammonia Gas-Sensing Electrode Instruction Manual
phoenix Electrode Company Ammonia Gas-Sensing Electrode Instruction Manual GENERAL INSTRUCTIONS Introduction The phoenix Electrode Company Ammonia Gas-Sensing Electrode is used to quickly, simply, accurately,
More informationph Probe Silver / silver chloride Reads Range / Resolution 95% in 1s Response time 100 PSI Max pressure 60m (197 ft) Max depth 1 99 C
V 2.8 Revised 1/16/18 ph Probe Silver / silver chloride Reads ph Range 0 14 Resolution Response time Max pressure Max depth Temperature range C Cable length Internal temperature sensor Time before recalibration
More informationAppendices towards the Operation Manual of Ultrasonic milk analyzer Lactoscan
APPENDIX 7 PH MEASURING 1. General information PH probe is a unit, measuring the solution acidity or alkalinity degree. It is measured on scale of 0 to 14. The term ph is derived from "p", the mathematical
More informationIon Selective Electrodes for the Laboratory. Presented by Chris Cushman OTCO Water Laboratory Analyst Workshop Thursday, May 14, 2015
Ion Selective Electrodes for the Laboratory Presented by Chris Cushman OTCO Water Laboratory Analyst Workshop Thursday, May 14, 2015 Outline Review ISE measurement technology How to properly calibrate
More informationperfection Guidebook perfection Combination Iodide Electrode Successful Ion Measurement
perfection Guidebook perfection Combination Iodide Electrode Successful Ion Measurement Contents Table of Contents 1. Introduction 1 2. Required Equipment 3 3. Electrode and Measurement Setup 4 Electrode
More informationIon Selective Electrode Probe
Rev. 1 Ion Selective Electrode Probe KDS-1064 Calcium KDS-1065 Ammonium KDS-1066 Nitrate KDS-1067 Chloride Type : Ion selective electrode Range : 1 M to 5x10-7 M(40,000 ~ 0.01 ppm) Sensor description The
More informationRapid RH Portable ph Meter. User's Manual
Rapid RH Portable ph Meter User's Manual This page intentionally left blank. 2 Contents 1. Introduction... 4 2. Included with the Rapid RH Portable ph Meter... 4 3. Understanding ph... 5 4. Calibrating
More informationMeasurements with Ion Selective Electrodes: Determination of Fluoride in Toothpaste
Experiment ISE: Measurements with Ion Selective Electrodes: Determination of Fluoride in Toothpaste 67 You have been hired by the government to check the fluoride concentration labelling on some major
More informationAdvanced Sensor Technologies, Inc. TEL: TOLL FREE: WOW-ASTI ( ) FAX:
IMPORTANT NOTES FOR FLUORIDE ISE MEASUREMENT SYSTEM WITH 56 ANALYZER IMPORTANT NOTE # 1: This addendum ONLY applies to the 2 nd generation Model 56 ISE Analyzers with the 2.19 software loaded. This addendum
More informationSodium Sealed Electrode Sensor Bundle Product Number: ENSOD051
imagine explore learn Sodium Sealed Electrode Sensor Bundle Product Number: ENSOD051 Overview Sodium is highly abundant in the lithosphere (Earth s outer shell) where it occurs as rock salt deposits as
More informationph Probe Spear Tip Silver / silver chloride Reads Range / Resolution 95% in 1s Response time 100 PSI Max pressure 60m (197 ft) Max depth
V 2.4 Revised 3/1/18 Spear Tip ph Probe Silver / silver chloride Reads ph Range 0 14 Resolution Response time Max pressure Max depth Temperature range C Cable length Internal temperature sensor Time before
More informationperfection Guidebook perfection Combination Cyanide Electrode Successful Ion Measurement
perfection Guidebook perfection Combination Cyanide Electrode Successful Ion Measurement Contents Table of Contents 1. Introduction 1 2. Required Equipment 3 3. Electrode and Measurement Setup 4 Electrode
More informationUser s Guide. Waterproof Palm ph Meter Model PH220. Introduction
User s Guide Waterproof Palm ph Meter Model PH220 Introduction Congratulations on your purchase of the Extech PH220 waterproof ph/mv meter. This microprocessor-based device with tactile buttons is battery
More informationFluoride Sealed Electrode Sensor Bundle Product Number: ENFLU049
imagine explore learn Fluoride Sealed Electrode Sensor Bundle Product Number: ENFLU049 Overview Fluoride is often added to drinking water and to toothpaste to prevent dental decay. In high concentrations,
More informationDirect Measurement ISE Method Method to 4.00 mg/l NO 3 N TISAB Solution
, drinking water, 8359 DOC316.53.01239 Direct Measurement ISE Method Method 8359 0.04 to 4.00 mg/l NO 3 N TISAB Solution Scope and Application: Drinking water Test preparation How to use instrument-specific
More informationMETHOD 9210 POTENTIOMETRIC DETERMINATION OF NITRATE IN AQUEOUS SAMPLES WITH ION-SELECTIVE ELECTRODE
METHOD 9210 POTENTIOMETRIC DETERMINATION OF NITRATE IN AQUEOUS SAMPLES WITH ION-SELECTIVE ELECTRODE 1.0 SCOPE AND APPLICATION 1.1 This method can be used for measuring total solubilized nitrate in drinking
More informationLEAD ION SELECTIVE ELECTRODE
Instruction Manual and Experiment Guide for the PASCO scientific Model CI-6736 012-06617A 8/97 LEAD ION SELECTIVE ELECTRODE 1997 PASCO scientific $7.50 10101 Foothills Blvd. P.O. Box 619011 Roseville,
More informationChloride, HR, Direct Measurement ISE Method Method g/l to 35 g/l Cl Powder Pillow ISA
, 10255 DOC316.53.01322 Direct Measurement ISE Method Method 10255 3.55 g/l to 35 g/l Cl Powder Pillow ISA Scope and Application: For the determination of high concentrations (1 M) of chloride in brine
More informationUnderstanding ph Troubleshooting and Diagnostic information
Understanding ph Troubleshooting and Diagnostic information The desire is to achieve an accurate, reliable measurement with a reasonable electrode life expectancy while minimizing frequency or complexity
More informationph electrode Instruction Manual For use with the RAH-210 & RPH-250
ph electrode Instruction Manual For use with the RAH-210 & RPH-250 The information in this manual was current at the time of printing. The most current versions of all Hydro Instruments manuals can be
More informationperfection Guidebook perfection Combination Cupric Electrode Successful Ion Measurement
perfection Guidebook perfection Combination Cupric Electrode Successful Ion Measurement Contents Table of Contents 1. Introduction 1 2. Required Equipment 3 Introduction 3. Electrode and Measurement Setup
More informationUser Guide. Perchlorate Ion Selective Electrode
User Guide Perchlorate Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationGuide to ph Analysis.
Guide to ph Analysis. XX Why Contents ph Matters Table of Contents Why ph Matters pg 4 What You Need pg 6 How to Measure pg 14 Slope and offset pg 18 Checklist pg 20 Best Practices pg 21 2 Guide to ph
More informationperfection Guidebook perfection Combination Fluoride Electrode Successful Ion Measurement
perfection Guidebook perfection Combination Fluoride Electrode Successful Ion Measurement Contents Table of Contents 1. Introduction 1 2. Required Equipment 2 3. Electrode and Measurement Setup 4 Electrode
More informationSTANDARD OPERATING PROCEDURE
Ref.. Table of Contents Page. Scope 2 2. Objective 2 3. Definitions 2 4. Responsibility 3 5. Procedure 3 5.. Diagram of Display and Control Panel 3 5.2. Installation 4 5.3. Operation 4 5.4. Calibration
More informationUser Guide. Fluoroborate Ion Selective Electrode
User Guide Fluoroborate Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationUser Guide. High Performance Ammonia Ion Selective Electrode
User Guide High Performance Ammonia Ion Selective Electrode Ross and the COIL trade dress are trademarks of Thermo Fisher Scientific, Inc. and its subsidiaries. AQUAfast, AQUASensors, BOD AutoEZ, ionplus,
More informationOPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS Model IQ120 and IQ125 Professional ph Meter with Silicon Chip Sensor (IQ125 additional instructions printed in RED) IQ Scientific Instruments 2075-E Corte del Nogal Carlsbad, CA
More informationDetermination of fluorides in aqueous samples using membrane, ion selective electrode (ISE)
Determination of fluorides in aqueous samples using membrane, ion selective electrode (ISE) (dr hab. inż. Andrzej Wasik, Gdańsk 2016) The aim of this laboratory exercise is to familiarise students with
More informationUser Guide. Calcium Ion Selective Electrode
User Guide Calcium Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationAmmonium Sealed Electrode Sensor Bundle Product Number: ENAMN020A
imagine explore learn Ammonium Sealed Electrode Sensor Bundle Product Number: ENAMN020A Overview Ammonium ions (NH 4+ ) can be found in fertilizer, cleaning products, processed meats and in the waste of
More informationPRACTICAL 3 ph AND BUFFERS
PRACTICAL 3 ph AND BUFFERS ph and Buffers Structure 3.1 Introduction 3.2 ph and Buffers: Basic Concept 3.2.1 ph 3.2.2 Buffers and Buffer Solutions 3.3 Methods for Determining ph Experiment 1: Measurement
More informationPHS-25CW/3BW Benchtop ph Meter Instruction Manual
PHS-25CW/3BW Benchtop ph Meter Instruction Manual BANTE INSTRUMENTS CO., LTD PHS-W Series Benchtop ph Meter 1 Introduction Thank you for selecting the PHS-W series benchtop ph meter. This manual provides
More informationMeasuring Ammonia in Water and Wastewater using the Thermo Scientific Orion Dual Star ph/ise Meter
Measuring Ammonia in Water and Wastewater using the Thermo Scientific Orion Dual Star ph/ise Meter Water and Lab Products, Thermo Fisher Scientific Technical Note 505 Key Words Thermo Scientific Orion
More information[Agilent Technologies] [Electrochemistry Products] Quick Reference
Overview Using I9121 Ammonia Gas Sensing Probe on 3200I/M This document demonstrates how to use I 9121 Ammonia Gas Sensing Probe on 3200I or 3200 M to measure pn or the concentration of [NH 4 + ]. Applied
More informationNO 2. Orion Nitrite Electrode INSTRUCTION MANUAL. Orion 93-46, Orion 97-46, ionplus. Analyze Detect Measure Control
NO 2 Orion 93-46, Orion 97-46, ionplus Orion Nitrite Electrode INSTRUCTION MANUAL Analyze Detect Measure Control AQUAfast, Cahn, EZ Flash, Ionalyzer, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT,
More informationQAM-I-111 Operation and Calibration of the Conductivity Meter
1.0 Applicability and Purpose i. This procedure applies to the operation and calibration of the YSI Model 3200 conductivity meter. This procedure is performed prior to any analysis using this meter. By
More informationUser Guide. ROSS Sodium Ion Selective Electrode
User Guide ROSS Sodium Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationAmmonia Gas Sensing Combination Electrode
51940-88 Ammonia Gas Sensing Combination Electrode Model 50250 Hach Company, 1999. All rights reserved. Printed in the U.S.A. hm/dk 4/99 1ed TRADEMARKS OF HACH COMPANY 2 TABLE OF CONTENTS SPECIFICATIONS...
More informationStandard Operating Procedure for GLNPO Specific Conductance: Conductivity Bridge
Standard Operating Procedure for GLNPO Specific Conductance: Marvin Palmer United States Environmental Protection Agency Great Lakes National Program Office Region 5 77 West Jackson 9th Floor Chicago,
More informationNH 3 -selective electrodes
NH 3 -selective electrodes Manual 8.109.8031EN Metrohm AG CH-9100 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com NH 3 -selective electrodes Manual 8.109.8031EN
More informationUser Manual. Thermo Scientific Orion Fluoride Ion Selective Electrode
User Manual Thermo Scientific Orion Fluoride Ion Selective Electrode 254792-001 Revision B September 2016 Table of Contents Introduction...1 Required Equipment...3 Electrode Setup...5 Electrode Preparation...5
More informationS ENTEK Unit 6 & 7 Crittall Court, Crittall Drive, Springwood Industrial Estate, Braintree, Essex, CM7 2SE Tel: +44 (0) Fax: +44 (0)
150mV 300mV Mono/Reference Combination S ENTEK Unit 6 & 7 Crittall Court, Crittall Drive, Springwood Industrial Estate, Braintree, Essex, CM7 2SE Tel: +44 (0) 1376 340 456 Fax: +44 (0) 1376 340 453 Email:
More informationThermo Scientific Orion Fluoride Ion Selective Electrodes The standard in fluoride ion analysis EPA compliant
Thermo Scientific Orion Fluoride Ion Selective Electrodes The standard in fluoride ion analysis EPA compliant Approved ASTM Method for Fluoride in Drinking Water and Wastewater Analyze free fluoride ions
More informationPHS-25CW/3BW Benchtop ph Meter. Instruction Manual BANTE INSTRUMENTS CO., LTD
PHS-25CW/3BW Benchtop ph Meter Instruction Manual BANTE INSTRUMENTS CO., LTD PHS-W Series Benchtop ph Meter 1 Introduction Thank you for selecting the PHS-W series benchtop ph meter. This manual provides
More informationAll about ph! Is it as simple as it seems? The ph Workshop. Rick Noone Thermo Scientific Water Analysis Instruments, Orion products May 22, 2014
All about ph! Is it as simple as it seems? The ph Workshop Rick Noone Thermo Scientific Water Analysis Instruments, Orion products May 22, 2014 Common Questions: Measuring ph What is ph? Potential Hydrogen
More informationUser Guide. Cyanide Ion Selective Electrode
User Guide Cyanide Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationF- Cl- Br- I- CN- S2- NO3-
Middle of the 60 s First ISE for fluoride Na+ K+ Ag+ Ca2+ NH + 4 Cu2+ Pb2+ F- Cl- Br- I- CN- S2- NO3- Environment Food industry and agriculture Medecine, pharmaceutical, cosmetics Power plants Fluoride
More informationUser Guide. Bromide Ion Selective Electrode
User Guide Bromide Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationEXPERIMENT 7. Determination of Sodium by Flame Atomic-Emission Spectroscopy
EXPERIMENT 7 Determination of Sodium by Flame Atomic-Emission Spectroscopy USE ONLY DEIONIZED WATER (NOT DISTILLED WATER!) THROUGHOUT THE ENTIRE EXPERIMENT Distilled water actually has too much sodium
More informationDimethylglyoxime Method Method to 6.0 mg/l Ni TNTplus 856
Nickel DOC316.53.01065 Dimethylglyoxime Method Method 10220 0.1 to 6.0 mg/l Ni TNTplus 856 Scope and application: For water and wastewater. Test preparation Instrument-specific information Table 1 shows
More informationComplex equilibria and calculations of formation constants from potentiometric data
Experiment 8: /Ag 2 Based Ion elective Electrode Determination of Lead/Hydroxide Equilibria While lead hydroxide does not give a good quantitative measure of lead, particularly in the presence of competing
More informationNO 500 DIN, NO 500 BNC NO 800 DIN, NO 800 BNC
OPERATING MANUAL ba15362e03 10/2014 NO 500 DIN, NO 500 BNC NO 800 DIN, NO 800 BNC NITRATE SENSITIVE ELECTRODE NO 500 NO 800 Note The latest version of the present operating manual can be found on the Internet
More informationsymphony Reference Electrodes
DOC022.53.80322 symphony Reference Electrodes 07/2012, Edition 1 User Manual Table of contents Safety information on page 3 Preparation for use on page 4 Specifications on page 3 Measurement on page 5
More informationUser Guide. High Performance Ammonia Ion Selective Electrode
User Guide High Performance Ammonia Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT,
More informationREADING A. INTRODUCTION CHE425L POTENTIOMETRY WITH K + ION-SELECTIVE ELECTRODE. Skoog, Holler and Crouch: Chapter 23 and Appendix 3.
CHE425L POTENTIOMETRY WITH K + ION-SELECTIVE ELECTRODE READING Skoog, Holler and Crouch: Chapter 23 and Appendix 3. A. INTRODUCTION Potentiometry is a static electroanalytical method in which the potential
More informationSalicylate Method Method HR (2 to 47 mg/l NH 3 N) TNTplus 832
, TNTplus 832, 10205 DOC316.53.01083 Salicylate Method Method 10205 HR (2 to 47 mg/l NH 3 N) TNTplus 832 Scope and Application: For surface waters, municipal and industrial wastewaters. Test preparation
More informationph Probes Lab vs. Process Care, Calibrations and Comparison Presented by: Michael Blackburn Technical Sales Specialist at Hach Company
ph Probes Lab vs. Process Care, Calibrations and Comparison Presented by: Michael Blackburn Technical Sales Specialist at Hach Company What Will We Cover Today? Calibrations vs. Validation Detection Methods
More informationSTANDARD OPERATING PROCEDURES
PAGE: 1 of 9 CONTENTS 1.0 SCOPE AND APPLICATION 2.0 METHOD SUMMARY 3.0 SAMPLE PRESERVATION, CONTAINERS, HANDLING, AND STORAGE 4.0 INTERFERENCES AND POTENTIAL PROBLEMS 5.0 EQUIPMENT/APPARATUS 6.0 REAGENTS
More informationChemistry MultiMeasure Sensor PS-2170
ä 5 Instruction Manual 012-09523A Chemistry MultiMeasure Sensor PS-2170 ph/ise/orp PRESSURE CHEMISTRY TEMPERATURE SENSOR VOLTAGE 1 2 3 4 PS-2170 5 6 7 cc 8 10 15 20 25 30 35 40 45 50 55 60 Included Equipment
More informationORP Probe ORP. Reads. +/-2000mV. Range. 95% in 1s. Response time 100 PSI. Max pressure. 60m (197 ft) Max depth 1 80 C. Temperature range C.
V 2.7 Revised 11/8/17 ORP Probe Reads Range Response time Max pressure Max depth Temperature range C Cable length Internal temperature sensor Time before recalibration Life expectancy Maintenance ORP +/-2000mV
More informationMethod 8326 (0.006 to mg/l Al 3+ ) Powder Pillows
, 8326 Eriochrome Cyanine R Method 1 Scope and Application: For water 1 Adapted from Standard Methods for the Examination of Water and Wastewater. DOC316.53.01003 Method 8326 (0.006 to 0.250 mg/l Al 3+
More informationph Probe ReallyEasyData com
ph Probe 9200001 Uses Whether you re monitoring ph for chemistry, physical science, life science, or earth science activity, this ph meter offers accurate readings in a convenient format. Use the RED ph
More informationUser Guide. Iodide Ion Selective Electrode
User Guide Iodide Ion Selective Electrode ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perphect, PerpHecT, PerpHecTion,
More informationBuffer Preparation. Learning Objectives:
Proteomics Buffer Preparation Buffer Preparation Maintaining the optimum ph during the biological sample processing is to maintain the proper functional and structural aspects of the sample. It is important
More informationsymphony Multisensor Probes
DOC022.53.80319 symphony Multisensor Probes 07/2012, Edition 1 User Manual Table of contents Safety information on page 3 Calibration on page 6 Specifications on page 3 Sample requirements on page 8 Product
More informationInstrument Sample cell orientation Sample cell DR 6000 DR 3800 DR 2800 DR 2700 DR 5000 DR The fill line is to the right.
Barium DOC316.53.01315 Turbidimetric Method 1 Method 10251 2 to 100, 20 to 1000, 200 to 10,000 mg/l Ba (spectrophotometers) Powder Pillows 2 to 80, 20 to 800, 200 to 8000 mg/l Ba (colorimeters) Scope and
More informationAmmonia Gas Sensing Combination Electrode
51927-88 Ammonia Gas Sensing Combination Electrode Model 51927-00 Hach Company, 2001. All rights reserved. Printed in the U.S.A. te/dk 08/01 1ed 2 TABLE OF CONTENTS SPECIFICATIONS...5 SAFETY PRECAUTIONS...7
More informationORP Probe. Mini ORP. Reads. +/-2000mV. Range SMA. Connector. 95% in 1s. Response time 100 PSI. Max pressure. 60m (197 ft) Max depth 1 80 C
Mini V 1.3 Revised 1/10/19 ORP Probe Reads Range Connector Response time Max pressure Max depth Temperature range C Cable length Internal temperature sensor Time before recalibration Life expectancy Maintenance
More informationChemistry Determination of Mixed Acids
Chemistry 3200 Acid-base titration is one of the most common operations in analytical chemistry. A solution containing an unknown amount of ionizable hydrogen can be titrated with a solution of standard
More informationBante210 Benchtop ph Meter Instruction Manual
Bante210 Benchtop ph Meter Instruction Manual BANTE INSTRUMENTS CO., LTD Bante210 Benchtop ph Meter 1 Introduction Thank you for selecting the Bante210 benchtop ph meter. This manual provides a step-by-step
More informationPC100 Handheld ph/cond./tds/sal. Meter. Instruction Manual
PC100 Handheld ph/cond./tds/sal. Meter Instruction Manual Table of Contents 1. Introduction ------------------------------------------------------------------------------------------------------------------------
More information