Raw Material Finished product By product Exposure standards Length of shift Physical environment
|
|
- Suzanna Bruce
- 6 years ago
- Views:
Transcription
1 Measurement &Sampling
2 Part 1 Introduction to Sampling
3 What to sample? - Hazard Raw Material Finished product By product Exposure standards Length of shift Recognition Physical environment
4 To Determine Level of exposure Hazards Recognition The effectiveness of control measures Investigate complaints Compliance with regulations Walk through Survey Locate existing hazards Review process See, smell, feel Control measures Field Survey More detail observation, Monitoring Normal and abnormal conditions
5 Field Survey Information required (Industrial Hygiene) Excessive noise Excessive heat Inadequate ventilation Radiation exposure Excessive air contaminant Ergonomic problems
6 Types of Sampling Grab or Instantaneous Samples GRAB SAMPLES Concentration Time Source; BP International
7 Short Term Samples Types of Sampling SHORT TERM TIME Concentration WEIGHTED AVERAGE Time Source; BP International
8 Long Term Samples Types of Sampling LONG TERM TIME Concentration WEIGHTED AVERAGE Time Source; BP International
9 Continuous Monitoring Types of Sampling CONTINUOUS MONITORING Concentration Time Source; BP International
10 Sampling of Gases and Vapours 1. Whole of Air or Grab Sampling 2. Active sampling Absorption Adsorption 3. Diffusion or passive samplers 4. Direct reading instruments 5. Detector tubes
11 Grab Sampling
12 Whole of Air or Grab Sampling Collected (the gas/vapour) Passively-evacuated prior to sampling Actively-by using a pump Evacuated containers Canisters Gas bottles Syringes Used when Concentration constant To measure peaks Short periods sampling purpose (grab)
13 Whole of Air or Grab Sampling (cont) Container preparation Cleaned Passivation (e.g. Summa process summa canister) Compounds ideally Stable Recoveries dependent on humidity, chemical reactivity & inertness of container (gaseous sampled not contaminated) Down to ppb levels Landfill gaseous sampling
14 Whole of Air or Grab Sampling (cont) Gas bags e.g. Tedlar or other polymers Filled in seconds or trickle filled Best for ppm levels Source: Airmet Scientific reproduced with permission
15 Whole of Air or Grab Sampling (cont) Sample loss issues: Permeation Adsorption onto bag Bag preparation Bag filling
16 Whole of Air or Grab Sampling (cont) Gas bags (cont) Single use cheap enough, but?? If reuse purge 3x at least Run blanks Don t overfill bag (can exceed 3 times of the stated volume)
17 Active Sampling
18 Active Sampling Pump Absorption Adsorption sorbent tubes eg Charcoal Silica gel Porous polymers Tenax, Poropaks etc TD Mixed phase sampling
19 Active Sampling (cont) Source: 3M Australia reproduced with permission Source: Airmet Scientific-reproduced with permission Low volume pump ml/min Sample train (procedure/setup) Calibration Source: Airmet Scientific-reproduced with permission
20 Active Sampling (cont) SamplingTube Holder (sorbent tube) Source University of Wollongong
21 Active Sampling (cont) Gas/Vapour Sampling Train Break off both ends of a sorbent tube (2mm diameter) Put tube in low flow adapter/tube holder Make sure tube is in correct way around Source: Airmet Scientific reproduced with permission
22 SKC Taking the Sample Place sample train on person: Start pump Note start time At end of sample: Note stop time Source :Airmet Scientific reproduced with permission (sampling workplace air in which workers mostly are working at)
23 Active Sampling (cont) Multi Tube sampling Universal type pumps allow: Up to 4 tubes at the same time either running at different flow rates (but same type of tube) or with different tubes (different sorbent, to sample different gaseous) 3 way adaptor shown Source :Airmet Scientific reproduced with permission To sample pump
24 Absorption Absorption gas or vapour collected by passing it through a liquid where it is collected by dissolution in the liquid Impingers Source: University of Wollongong
25 Absorption - Impinger Sampling Train Source :Airmet Scientific reproduced with permission
26 Absorption (cont) Collection efficiencies of gas/vapor samples Size and number of bubbles Volume of liquid Sampling rate typically up to 1 L/min Reaction rate Liquid carry over or liquid loss Connect in series Need to keep samplers upright Personal sampling awkward & difficult
27 Absorption (cont) Absorption derivatisation often used for: Formaldehyde collected in water or bisulphite Oxides of nitrogen in sulphanilic acid Ozone in potassium iodine Toluene diisocyanate 1-(2- methoxy phenyl) piperazine in toluene
28 Adsorption Gas or vapour is collected by passing it over and retained on the surface of the solid sorbent media Direction of sample flow Back up sorbent bed Main sorbent bed Source :Airmet Scientific reproduced with permission
29 Adsorption (cont) Breakthrough: Source :Airmet Scientific reproduced with permission
30 Adsorption (cont) After sampling: - remove tube - take sample - cap the tube - store - submit for analysis with details of sample (sampling duration, media, environment etc) Don t forget to send a blank with samples to laboratory Source :Airmet Scientific reproduced with permission
31 Activated Charcoal Extensive network of internal pores with very large surface area Is non polar and preferentially adsorbs organics rather than polar compounds Typically using CS 2 for desorption (recovery)
32 Activated Charcoal (cont) Limitations Poor recovery for reactive compounds, polar compounds such as amines & phenols, aldehydes, low molecular weight alcohols & low boiling point (very volatiles) compounds such as ammonia, ethylene and methylene chloride
33 Silica Gel Used for polar substances such as Glutaraldehyde Amines Inorganics which are hard to desorb from charcoal Disadvantage Affinity for water Desorption Polar solvent such as water and methanol
34 Porous Polymers & Other Adsorbents Where gas & vapour not collected effectively with charcoal or poor recoveries Tenax low level pesticides XAD 2 for pesticides Chromosorb pesticides Porapaks polar characteristics Others: Molecular sieves Florisil for PCBs Polyurethane foam for pesticides, PNAs
35 Thermal Desorption Superseding (more powerful) compared to CS 2 desorption especially in Europe Why desorp? recovery of adsorbant, gas/vapor analyses in GC etc. Sensitivity (to various affecting factors for desorption) Desorption efficiency Reproducibility (consistent results/outcomes) Analytical performance
36 Thermal Desorption (cont) Thermal desorption tubes: ¼ inch OD x 3 ½ long stainless steel Pre packed with sorbent of choice SwageLok storage cap Diffusion cap Conditioning of tubes prior / after use Sources: Markes International reproduced with permission
37 Thermal Desorption Unit with GC/MS Sources: Markes International reproduced with permission
38 Collection Efficiencies of Adsorption Tubes Temperature Adsorption reduced at higher temperatures Some compounds can migrate through bed Tips: Store in cool box, fridge or freezer Humidity Charcoal and silica gel has great affinity for water vapour
39 Collection Efficiencies (cont) Sampling flow rate If too high -> insufficient residence time for adsoprtion to occur Channeling If incorrectly packed (thus not adsorbed) Overloading (of the sorbent/adsorbant) If concentrations / sampling times too long or other contaminants inc. water vapour are present
40 Mixed Phase Sampling Solid, liquid, aerosol and gas and vapour phases (all or some present at the same time) Impingers -> used for sampling E.g. in aluminium industry fluorides as particulate (solid), or hydrofluoric acid as a mist or as gas.
41 Passive Sampling
42 Passive Sampling - Unlike active sampling -> no pump - But collected in a container (e.g. canister, metal tube etc.) - Container contains adsorbent - Diffusion/permeation through membrane)
43 Diffusion or Passive Sampling Fick s Law m = AD (c 0 c) t L where m = mass of adsorbate collected in grams t = sampling time in seconds A = cross sectional area of the diffusion path in square cm D = diffusion coefficient for the adsorbate in air in square cm per second available from manufacturer of the sampler for a given chemical L = length of the diffusion path in cm (from porous membrane to sampler) c = concentration of contaminant in ambient air in gram per cubic cm c 0 = concentration of contaminant just above the adsorbent surface in gram per cubic cm
44 Diffusion or Passive Sampling (cont) Source: HSE reproduced with permission
45 Diffusion or Passive Sampling (cont) Source: 3M Australia reproduced with permission Every contaminant on every brand of monitor has its own unique, fixed sampling rate
46 Diffusion or Passive Sampling (cont) Advantages Easy to use No pump, batteries or tubing & no calibration Light weight Less expensive TWA & STEL Accuracy ± 95% confidence
47 Diffusion or Passive Sampling (cont) Limitations Need air movement 25 ft/min or 0.13m/sec Cannot be used for Low vapour pressure organics (low volatiles) eg glutaraldehyde Reactive compounds such as phenols & amines Humidity Sampling rate needs to be supplied by manufacturer (cannot be set e.g. using pump)
48 Diffusion or Passive Sampling (cont) After sampling, diffusion badges or tubes must be sealed and stored correctly prior to analysis E.g. with the 3M Organic Vapour Monitors: Single charcoal layer: Fig 1- remove white film & retaining ring. Fig 2 - Snap elution cap with plugs closed onto main body & store prior to analysis Fig 1 Fig 2 Source: 3M Australia reproduced with permission
49 Diffusion or Passive Sampling (cont) What can be typically sampled? Extensive range of organics Monitors with back up sections (adsorbent) also available Chemically impregnated (treated) sorbents allows sampling of those chemicals below: Formaldehyde Ethylene oxide Phosphine Phosgene Inorganic mercury Amines
50 Active Sampling Calculation of Results Conc (mg/m 3 ) = m f + m r m b x 1000 D x V Where: m f is mass analyte in front section in mg m r is mass analyte in rear or back up section in mg m b is mass of analyte in blank in mg (prior to actual sampling) D is the desorption efficiency V is the volume in litres (of the gas/vapor sampled)
51 Passive/Diffusion sampling: Calculation of results Conc (mg/m 3 )= W (µg) x A r x t where W = contaminant weight (µg) A = calculation constant = 1000/Sampling rate r = recovery coefficient t = sampling time in minutes Conc (ppm) = W (µg) x B r x t where W = contaminant weight (µg) B = calculation constant = 1000 x / Sampling rate x mol wt r = recovery coefficient t = sampling time in minutes
52 End of Part 1
Real-Time Detection: From Gisclard et al.: A Simple Device for Air Analysis. AIHA Quarterly, 14(1):23-25 (1953)
Real-Time Detection: 1953 From Gisclard et al.: A Simple Device for Air Analysis. AIHA Quarterly, 14(1):23-25 (1953) Sampling Gases and Vapors Gas: A state of matter characterized by very low density and
More informationVapor Intrusion Sampling Options: Performance Data for Canisters, Badges, and Sorbent Tubes for VOCs
Vapor Intrusion Sampling Options: Performance Data for s, Badges, and Sorbent Tubes for VOCs Linda S. Coyne SKC Inc., 863 Valley View Road, Eighty Four, PA 1533 George Havalias, Maria C. Echarte American
More informationSampling for Gases and Vapors
Sampling for Gases and Vapors EOH 466B Evaluating the Occupational Environment Spring 2008 Gases and Vapors Gases: don't exist in liquid state at STP e.g.: nitrous oxides, ozone, carbon monoxide Vapors:
More informationAtmospheric Analysis Gases. Sampling and analysis of gaseous compounds
Atmospheric Analysis Gases Sampling and analysis of gaseous compounds Introduction - External environment (ambient air) ; global warming, acid rain, introduction of pollutants, etc - Internal environment
More informationSampling. Information is helpful in implementing control measures for reducing pollutant concentration to acceptable levels
Types of pollutant sampling and measurement: Air quality monitoring: Sampling and measurement of air pollutants generally known, as air quality monitoring. It is an integral component of any air pollution
More informationTHEORETICAL DETERMINATION OF THE SAMPLING RATES OF DIFFUSION SAMPLERS FOR VOCS AND ALDEHYDES
THEORETICAL DETERMINATION OF THE SAMPLING RATES OF DIFFUSION SAMPLERS FOR VOCS AND ALDEHYDES J Kouzaki 1*, S Sato 1, S Nakai 1, Y Shirasuna 2, K Hirano 2 1 Graduate School of Environmental and Information
More informationANALYTICAL METHOD DETERMINATION OF VOLATILE ALDEHYDES IN AMBIENT AIR Page 1 of 11 Air sampling and analysis
DETERMINATION OF VOLATILE ALDEHYDES IN AMBIENT AIR Page 1 of 11 Replaces: Dated: Author: Date: AM-No.: New New Nils Arne Jentoft 18.06.2014 0 CHANGES This procedure is new. 1 SCOPE This document describes
More informationDETERMINATION OF UPTAKE RATES FOR VOCs IN AMBIENT AIR BY USING AXIAL TYPE THERMAL DESORPTION PASSIVE TUBES
DETERMINATION OF UPTAKE RATES FOR VOCs IN AMBIENT AIR BY USING AXIAL TYPE THERMAL DESORPTION PASSIVE TUBES Mihriban Yılmaz Civan, Öznur Kuntasal and Gürdal Tuncel 1 1 OUTLINE Introduction Importance and
More informationVINYL CHLORIDE. Recommended by NIOSH, partially evaluated by OSHA Laboratory.
VINYL CHLORIDE Method no.: 04 Matrix: Air Target concentration: 3 1 ppm (2.5 mg/m ) (OSHA PEL) Procedure: Collection on charcoal (two-tubes in-series), desorption with carbon disulfide, analysis by gas
More informationMagnitudes of Back Diffusion During Long-Term Diffusive Sampling of Volatile Organic Compounds Using Carbotrap and Chromosorb 106
Turk J Chem 24 (2000), 131 139. c TÜBİTAK Magnitudes of Back Diffusion During Long-Term Diffusive Sampling of Volatile Organic Compounds Using Carbotrap and Chromosorb 106 Naciye KILIÇ University of Uludağ,
More informationValidation of. Tetrahydrofuran Using. SKC Passive Sampler Cat. No
Validation of Tetrahydrofuran Using SKC Passive Sampler Cat. No. 575-002 Page 1 of 10 Publication 1841 Issue 1407 Research Report Validation of Tetrahydrofuran Using the SKC Cat. No. 575-002 Passive Sampler
More informationMETHOD: 1403, Issue 3 EVALUATION: FULL Issue 1: 15 August 1990 Issue 3: 15 March 2003
ALCOHOLS IV 1403 (1) HOCH 2 CH 2 OCH 3 MW: (1) 76.09 CAS: (1) 109-86-4 RTECS: (1) KL5775000 (2) HOCH 2 CH 2 OCH 2 CH 3 (2) 90.12 (2) 110-80-5 (2) KK8050000 (3) HOCH 2 CH 2 O(CH 2 ) 3 CH 3 (3) 118.17 (3)
More informationStrategies For Selecting Air Sampling Methods AIHA-Florida Section Spring Conference
Strategies For Selecting Air Sampling Methods 2011 AIHA-Florida Section Spring Conference Course Outline What are we going to sample for Sampling media Active sampling, diffusive samplers, direct read
More informationMethod for the determination of 1,3-butadiene
Federation of the Employment Accidents Insurance Institutions of Germany (Hauptverband der Berufsgenossenschaften) Centre for Accident Prevention and Occupational Medicine Alte Heerstraße 111, 53757 Sankt
More informationHYDROCARBONS, AROMATIC 1501
HYDROCARBONS, AROMATIC 1501 FORMULA: Table 1 MW: Table 1 CAS: Table 1 RTECS: Table 1 METHOD: 1501, Issue 3 EVALUATION: Full Issue 1: 15 August 1990 Issue 3: 15 March 2003 OSHA : Table 2 NIOSH: Table 2
More informationResearch Report. Validation of Methyl Methacrylate (MMA) using SKC Passive Sampler Abstract
Research Report Validation of using SKC Passive Sampler 575-002 Abstract A sampling method for Methyl Methacrylate in air has been validated for concentration levels from 10 to 200 ppm and for exposure
More informationIntroduction to IH Analytical Chemistry
Introduction to IH Analytical Chemistry Sampling and Analysis Manning, Eide, Van Etten (Apr 2013) Foreword Thank you for purchasing the Introduction to IH Analytical Chemistry self-study workbook. Course
More informationApplication Note 032
Application Note 3 Analysis of Sulfur Compounds Using On-line and Off line TD GC Application Note Abstract This application note shows how Markes TD technology is compatible with trace level sulfur compounds,
More informationTDTS. Keywords. Introduction. TD Operation; Calibration; Impedance; Discrimination
Thermal Desorption Technical Support Note 75: Liquid standard injection, tube impedance and other factors which may cause discrimination during the calibration of thermal desorption methods Keywords TD
More informationTar & (SPA) tar analysis
Tar & (SPA) tar analysis Truls Liliedahl Chemical Technology School of Chemical Science and Engineering Royal Institute of Technology (KTH) Stockholm, Sweden Tar when gasifying biomass Gasification at
More informationAir Monitoring Sorbent Pens. For Environmental and IH Applications
Air Monitoring Sorbent Pens For Environmental and IH Applications Sorbent Pens for Quantitative Air Monitoring Sorbent Pens mark the latest innovation in quantitative air monitoring from Entech Instruments.
More informationAnalysis of TO-15/TO-17 air toxics in urban air using TD GC/TOF MS and automated compound identification software
Analysis of TO-15/TO-17 air toxics in urban air using TD GC/TOF MS and automated compound identification software NEMC, Washington D.C. August 6 th 2012 Nicola Watson Environmental Specialist Markes International
More informationChapter 3: Source Measurement Techniques
Chapter 3 Source Measurement Techniques Measurement Methods Method 18, Measurement of Gaseous Organic Compound Emissions by Gas Chromatography Method 25, Determination of Total Gaseous Non-Methane Organic
More informationEmission measurements according to, M1 (3 appendices)
issued by an Accredited Testing Laboratory Contact person Ulrika Johansson 2017-01-30 6F024225-1 1 (6) Chemistry, Materials and Surfaces +46 10 516 53 22 ulrika.johansson@sp.se Accred. No. 1002 Testing
More informationVOC EMISSION TEST REPORT ISO 16000
Proxy A/S Gothersgade 12, 1.th 1123 København K DENMARK Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark CustomerSupport@eurofins.com www.eurofins.com/voc-testing 1 Sample Information VOC
More informationIndustrial Hygiene Report
Industrial Hygiene Report Control of Hydrochloric Acid Vapors in a Lab Setting September, 24 2012 Sentry Air Systems 6999 W. Little York Rd, Suite P1 Houston, TX 77040 BACKGROUND: Hydrochloric acid, an
More informationChromatography. Gas Chromatography
Chromatography Chromatography is essentially the separation of a mixture into its component parts for qualitative and quantitative analysis. The basis of separation is the partitioning of the analyte mixture
More informationTest Report. Glava AS. Emission test of Ecophon Venus according to M1 classification. October / November Smedeskovvej 38, DK-8464 Galten
Test Report Glava AS Emission test of Ecophon Venus according to M1 classification October / November 2006 Client: Glava AS Nybråtveien 2 1832 Askim Norge Date: 8 th of November 2006 Testing Laboratory:
More informationVOC TEST REPORT M1. 23 October Regulation or protocol Conclusion Version of regulation or protocol
Würth Oy Würthintie 1 11710 Riihimäki Finland Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT M1 23 October 2017 1 Sample
More informationHigh Performance Liquid Chromatography
Updated: 3 November 2014 Print version High Performance Liquid Chromatography David Reckhow CEE 772 #18 1 HPLC System David Reckhow CEE 772 #18 2 Instrument Basics PUMP INJECTION POINT DETECTOR COLUMN
More informationHigh Performance Liquid Chromatography
Updated: 3 November 2014 Print version High Performance Liquid Chromatography David Reckhow CEE 772 #18 1 HPLC System David Reckhow CEE 772 #18 2 1 Instrument Basics PUMP INJECTION POINT DETECTOR COLUMN
More informationMETHYLTIN CHLORIDES 5526
METHYLTIN CHLORIDES 5526 Formula: Table 1 MW: Table 1 CAS: Table 1 RTECS: Table 1 METHOD: 5526, Issue 1 EVALUATION: FULL Issue 1: 15 March 2003 OSHA : See Table 1 NIOSH: See Table 1 ACGIH: See Table 1
More informationChemistry Instrumental Analysis Lecture 27. Chem 4631
Chemistry 4631 Instrumental Analysis Lecture 27 Gas Chromatography Introduction GC covers all chromatographic methods in which the mobile phase is gas. It may involve either a solid stationary phase (GSC)
More informationVOC TEST REPORT M1. 16 August Regulation or protocol Conclusion Version of regulation or protocol
SGS-Doors A/S Thrigesvej 8-16 7430 Ikast DENMARK Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT M1 16 August 2016 1 Sample
More informationVolumetric Analysis. Quantitative analysis answers the second question
Volumetric Analysis Volumetric analysis is a form of quantitative analysis involving the measuring of volumes of reacting solutions, it involves the use of titrations. When buying food we often have two
More informationChemistry Gas Chromatography: Separation of Volatile Organics
Chemistry 3200 Gas chromatography (GC) is an instrumental method for separating volatile compounds in a mixture. A small sample of the mixture is injected onto one end of a column housed in an oven. The
More informationMethod for the determination of dimethyl sulfate
German Social Accident Insurance Deutsche Gesetzliche Unfallversicherung Analytical Subcommittee of the Chemistry Board of Experts* Carcinogenic substances Order number: BGI 505-7-05 Established methods:
More informationDetermination of Total Volatile Organic Compounds in Indoor Air Using Agilent 7667A mini TD and 7820A GC
Determination of Total Volatile Organic Compounds in Indoor Air Using Agilent 77A mini TD and 70A GC Application Note Environmental Authors Tingting Bu, Xiaohua Li Agilent Technologies (Shanghai) Co.,
More informationORGANOPHOSPHORUS PESTICIDES 5600
ORGANOPHOSPHORUS PESTICIDES 5600 Formula: Table 1 MW: Table 1 CAS: Table 1 RTECS: Table 1 METHOD: 5600, Issue 1 EVALUATION: FULL Issue 1: 15 August 1994 OSHA : Table 2 NIOSH: Table 2 ACGIH: Table 2 PROPERTIES:
More informationPacked Column for Ultra-Fast Reversed-Phase Liquid Chromatography, TSKgel Super-ODS. Table of Contents
No. 089 SEPARATION REPORT Packed Column for Ultra-Fast Reversed-Phase Liquid Chromatography, TSKgel Super-ODS Table of Contents 1. Introduction 1 2. Column Specification 1 3. Features of Packing Materials
More informationmethod for monitoring exposure to gasoline vapour in air revision 2002
method for monitoring exposure to gasoline vapour in air revision 2002 Prepared by: P. E. Tindle Reviewed for CONCAWE by: A. Bianchi E. Loader C. Money G. Pizzella J. Urbanus (Technical Co-ordinator) Reproduction
More informationAIR. Ambient, Indoor, Workplace Air and Stack Emissions Proficiency Testing Scheme. Sample Preparation Instructions Round 1
General Instructions Ambient, Indoor, Workplace Air and Sample Instructions Round 1 Sample Storage All samples should be stored in accordance with the instructions provided on the sample labels from the
More informationCHROMATOGRAPHY. The term "chromatography" is derived from the original use of this method for separating yellow and green plant pigments.
CHROMATOGRAPHY The term "chromatography" is derived from the original use of this method for separating yellow and green plant pigments. THEORY OF CHROMATOGRAPHY: Separation of two sample components in
More informationTar analysis by Solid Phase Adsorption (SPA) associated with Thermal Desorption (TD) and Gas Chromatography (GC) analysis
Tar analysis by Solid Phase Adsorption (SPA) associated with Thermal Desorption (TD) and Gas Chromatography (GC) analysis E. Masson (CRITT Bois, Epinal, France) A. Dufour (CNRS, Nancy, France) International
More informationVOC TEST REPORT M1. 6 April Regulation or protocol Conclusion Version of regulation or protocol
Dana Lim A/S Københavnsvej 220 4600 Køge DENMARK Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT M1 6 April 2017 1 Sample
More informationAbstract: An minimalist overview of chromatography for the person who would conduct chromatographic experiments, but not design experiments.
Chromatography Primer Abstract: An minimalist overview of chromatography for the person who would conduct chromatographic experiments, but not design experiments. At its heart, chromatography is a technique
More informationShort-Period Air Sampling by Direct-reading Instruments
Short-Period Air Sampling by Direct-reading Instruments OHAO Meeting, Toronto, October 13, 2011 Ian Drummond and Paul Bozek, Dalla Lana School of Public Health, University of Toronto Program for today's
More informationAdsorption (Ch 12) - mass transfer to an interface
Adsorption (Ch 12) - mass transfer to an interface (Absorption - mass transfer to another phase) Gas or liquid adsorption (molecular) onto solid surface Porous solids provide high surface area per weight
More informationVOC EMISSION TEST REPORT BREEAM NOR
Hey di AS Tretjerndalsveien 68 Pb 13 2017 Frogner NORWAY Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark CustomerSupport@eurofins.com www.eurofins.com/voc-testing 1 Sample Information
More informationMethods for the determination of ethylene oxide
Federation of the Employment Accidents Insurance Institutions of Germany (Hauptverband der Berufsgenossenschaften) Centre for Accident Prevention and Occupational Medicine Alte Heerstraße 111, 53757 Sankt
More informationMethods of pollution control and waste management - laboratory. Adsorptive removal of volatile organic compounds from gases streams
Methods of pollution control and waste management - laboratory Adsorptive removal of volatile organic compounds from gases streams Manual for experiment 17 dr Hanna Wilczura-Wachnik and dr inż. Jadwiga
More informationHigh Performance Liquid Chromatography
High Performance Liquid Chromatography What is HPLC? It is a separation technique that involves: Injection of small volume of liquid sample Into a tube packed with a tiny particles (stationary phase).
More informationChemistry 311: Instrumental Analysis Topic 4: Basic Chromatography. Chemistry 311: Instrumental Analysis Topic 4: Basic Chromatography
Introductory Theory, Basic Components, Qualitative and Quantitative applications. HPLC, GC, Ion Chromatography. Rouessac Ch. 1-7 Winter 2011 Page 1 Chromatography: The separation of analytes based on differences
More informationThermal Desorption Technical Support. Note 56: TD-GC/MS analysis of vapour-phase organic compounds for materials emissions testing.
Thermal Desorption Technical Support Note 56: TD-GC/MS analysis of vapour-phase organic compounds for materials emissions testing Keywords certification protocols, (T)(V)(S)VOCs, ULTRA-UNITY, field/laboratory
More informationNON-METHANE ORGANIC CARBON ANALYZER (NMOC Method 25)
Gas Chromatography NON-METHANE ORGANIC CARBON ANALYZER (NMOC Method 25) The Non-Methane Organic Compounds (NMOC) Analyzer is a gas chromatograph configured for analyzing gaseous samples for total organic
More informationCopyright 2009 PerkinElmer LAS and CARO Analytical Services, Inc.
Optimizing Sampling and Analytical Parameters for Soil Vapour Samples using Automated Thermal Desorption / Gas Chromatography / Mass Spectrometry (ATD/GC/MS) Stephen Varisco, Technical Manager, CARO Analytical
More informationGas Chromatography. Vaporization of sample Gas-solid Physical absorption Gas-liquid Liquid immobilized on inert solid
Gas Chromatography Vaporization of sample Gas-solid Physical absorption Gas-liquid Liquid immobilized on inert solid Principles Instrumentation Applications 18-1 Retention Volumes Volumes rather than times
More informationVOC TEST REPORT CDPH
Euro Trade Flooring SL. Pol. Ind. Can Estella c/galileo no. 11 08635 Sant Esteve Sesrovires BARCELONA SPAIN Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing
More informationVOC TEST REPORT CDPH
Adolf Würth GmbH und Co. KG Reinhold-Würth Str. 12-17 74653 Künzelsau GERMANY Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT
More informationFORMALDEHYDE by GC 2541
FORMALDEHYDE by GC 2541 H 2 C=0 MW: 30.03 CAS: 50-00-0 RTECS: LP8925000 METHOD: 2541, Issue 2 EVALUATION: PARTIAL Issue 1: 15 May 1989 Issue 2: 15 August 1994 OSHA : NIOSH: ACGIH: 0.75 ppm; 2 ppm STEL
More informationVOC TEST REPORT CDPH
Baux AB Östermalmsgatan 26A 114 26 Stockholm SWEDEN Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT CDPH 29 September 2017
More informationRecap: Introduction 12/1/2015. EVE 402 Air Pollution Generation and Control. Adsorption
EVE 402 Air Pollution Generation and Control Chapter #6 Lectures Adsorption Recap: Solubility: the extent of absorption into the bulk liquid after the gas has diffused through the interface An internal
More informationCompendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air. Second Edition. Compendium Method TO-17
EPA/625/R-96/010b Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-17 Determination of Volatile Organic Compounds in Ambient Air
More informationSupelco Air Monitoring. Irina Galushko,
Supelco Air Monitoring Irina Galushko, irina.galushko@merckgroup.com Areas of Air Monitoring Industrial Hygiene Occupational Workplace Ambient Industry Farming Hazardous Waste Sites Source Industrial Stacks
More informationTest Report- VOC emission regulations in Europe
L Isolante K-flex Srl Via Leonardi da Vinci 36 20877 Roncello (MB) Italy Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark voc@eurofins.com www.eurofins.com/voc-testing Date 29 August 2013
More informationInnovative Thermal Desorption From Agilent Technologies. Vivek Dhyani Application Chemist
Innovative Thermal Desorption From Agilent Technologies Vivek Dhyani Application Chemist What is thermal desorption (TD)? How does thermal desorption compare to Head Space? Thermal desorption (TD) is the
More informationMODULE 4.3 Atmospheric analysis of particulates
MODULE 4.3 Atmospheric analysis of particulates Measurement And Characterisation Of The Particulate Content 1 Total particulate concentration 1 Composition of the particulate 1 Determination of particle
More informationPRINCIPLES AND APPLICATION OF CHROMATOGRAPHY. Dr. P. Jayachandra Reddy Mpharm PhD Principal & professor KTPC
PRINCIPLES AND APPLICATION OF CHROMATOGRAPHY Dr. P. Jayachandra Reddy Mpharm PhD Principal & professor KTPC CHROMATOGRAPHY Laboratory technique for the Separation of mixtures Chroma -"color" and graphein
More informationThermal Desorption Technical Support
Thermal Desorption Technical Support Note 86a: US EPA Method TO-17 for Monitoring Air Toxics in Ambient Air Using Sorbent Tubes and Automated, Cryogen-free Thermal Desorption Application Note Environmental,
More informationThe Application of Method TO-15 to Naphthalene Measurements in Indoor Air
The Application of Method TO-15 to Naphthalene Measurements in Indoor Air Extended Abstract #13 Heidi C. Hayes and Diane J. Benton Air Toxics Ltd. 180 Blue Ravine Rd. Ste. B Folsom, CA 95630 INTRODUCTION
More informationTO-17 Extending the Hydrocarbon Range above Naphthalene for Soil Vapor and Air Samples Using Automated
TO-17 Extending the Hydrocarbon Range above Naphthalene for Soil Vapor and Air Samples Using Automated Lee Marotta, Field Application Scientist, PerkinElmer Miles Snow, Research Scientist, PerkinElmer
More informationSURVEY OF CHEMICALS EMISSION FACTORS FROM BUILDING MATERIALS FOR INTERIORS
SURVEY OF CHEMICALS EMISSION FACTORS FROM BUILDING MATERIALS FOR INTERIORS Hitomi Yoshida Japan Testing Center for Construction Materials, Japan Abstract Indoor air pollution in buildings is caused by
More informationVOC TEST REPORT EMICODE
Polyseam Ltd Shaw Park, Silver Street Huddersfield, West Yorkshire, HD5 9AF UK Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT
More informationVOC TEST REPORT AgBB
Bostik SA 253 rue du Président Wilson 93211 La Plaine St Denis Cedex FRANCE Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark VOC@eurofins.com www.eurofins.com/voc-testing VOC TEST REPORT
More informationIrene L. Richardson, M.S.
DoD IH Forum 2005: Estimating Service Life for Chemical Respirator Cartridges An Overview Irene L. Richardson, M.S. Industrial Hygienist US Army Center for Health Promotion and Preventive Medicine Why
More informationChapter content. Reference
Chapter 7 HPLC Instrumental Analysis Rezaul Karim Environmental Science and Technology Jessore University of Science and Technology Chapter content Liquid Chromatography (LC); Scope; Principles Instrumentation;
More informationA P T I : A T M O S P H E R I C S A M P L I N G C O U R S E
Chapter 6 This chapter will take approximately 1 hour and 45 minutes to complete. Gaseous Sampling O B J E C T I V E S Terminal Learning Objective At the end of this chapter, the student will be able to
More informationCHAPTER 6 GAS CHROMATOGRAPHY
CHAPTER 6 GAS CHROMATOGRAPHY Expected Outcomes Explain the principles of gas chromatography Able to state the function of each components of GC instrumentation Able to state the applications of GC 6.1
More informationTest Report. Tremco-Illbruck GmbH & Co KG. Product Emissions Test (AgBB/DIBt Test Protocol) Butyl und Bitumenprimer. June 2011
Test Report Tremco-Illbruck GmbH & Co KG Product Emissions Test (AgBB/DIBt Test Protocol) Butyl und Bitumenprimer June 2011 Client: Tremco-Illbruck GmbH & Co KG Von Der Wettern Str. 27 51149 Köln Germany
More informationTOTALLY INNOVATIVE MULTIMODE AUTOSAMPLER NEW KONIK ROBOKROM Laboratory Gas Generators An Overview +8 OPERATIONAL MODES MAIN FEATURES
ROBOKROM 1 TOTALLY INNOVATIVE MULTIMODE AUTOSAMPLER NEW KONIK ROBOKROM Laboratory Gas Generators An Overview ROBOKROM 2 +8 OPERATIONAL MODES HRGC+HRGC-MS HRGC+HPLC-MS STATIC HEAD SPACE PURGE & TRAP SMPE
More informationA STUDY OF VOLATILE ORGANIC CARBON POLLUTION ON A UNIVERSITY CAMPUS DUE TO TRAFFIC
A STUDY OF VOLATILE ORGANIC CARBON POLLUTION ON A UNIVERSITY CAMPUS DUE TO TRAFFIC Aysel T. ATIMTAY Middle East Technical University, Environmental Engineering Department, 06531 Ankara Turkey (aatimtay@metu.edu.tr)
More informationSAB Soil Vapour Forum July 8, Overview of Soil Vapour Assessment From A Laboratory Industry Perspective
SAB Soil Vapour Forum July 8, 2008 Overview of Soil Vapour Assessment From A Laboratory Industry Perspective Where We Are.. Want To Be Soil Vapour Assessment Process: New Matrix/Regulations Current State
More informationEMICODE Test Report. 1 Sample Information. 2 Evaluation of the Results. Report No. G12871B_02
Polyseam A/S Ravneveien 7 Linnestad Næringsområde 3174 Revetal Norway Eurofins Product Testing A/S Smedeskovvej 38 8464 Galten Denmark voc@eurofins.com www.eurofins.com/voc-testing Date 09 October 2014
More informationApplication Note. Application Note 081 Innovative Cryogen-Free Ambient Air Monitoring in Compliance with US EPA Method TO-15. Abstract.
Application Note 8 Innovative Cryogen-Free Ambient Air Monitoring in Compliance with US EPA Method TO-5 Application Note Environmental, Canister, TO-5, Air Monitoring, Air Toxics Abstract This application
More informationSupporting Information
Supporting Information A Teflon microreactor with integrated piezoelectric actuator to handle solid forming reactions Simon Kuhn, a Timothy oёl, b Lei Gu, a Patrick L. eider a and Klavs F. Jensen a* a
More informationApplication Note 116 Monitoring VOCs in Ambient Air Using Sorbent Tubes with Analysis by TD-GC/MS in Accordance with Chinese EPA Method HJ
Application Note Monitoring VOCs in Ambient Air Using Sorbent Tubes with Analysis by TD-GC/MS in Accordance with Chinese EPA Method HJ -3 Application Note Abstract This application note demonstrates the
More information1.0 Reactive Gas Chromatography Design and Setup Procedure for Catalyst Pelletization & Inlet Packing Software and Method.
Electronic Supplementary Material (ESI) for Catalysis Science & Technology. This journal is The Royal Society of Chemistry 207 Supplementary Information Simple Quantification of Zeolite Acid Site Density
More informationThin Layer Chromatography
Thin Layer Chromatography Thin-layer chromatography involves the same principles as column chromatography, it also is a form of solid-liquid adsorption chromatography. In this case, however, the solid
More informationAnalytical Chemistry
Analytical Chemistry Chromatographic Separations KAM021 2016 Dr. A. Jesorka, 6112, aldo@chalmers.se Introduction to Chromatographic Separations Theory of Separations -Chromatography Terms Summary: Chromatography
More informationGB/T Translated English of Chinese Standard: GB/T
Translated English of Chinese Standard: GB/T18204.26-2000 www.chinesestandard.net Sales@ChineseStandard.net NATIONAL STANDARD OF THE GB PEOPLE S REPUBLIC OF CHINA GB/T 18204.26-2000 Methods for determination
More informationChapter 27: Gas Chromatography. Principles Instrumentation Detectors Columns and Stationary Phases Applications
Chapter 27: Gas Chromatography Principles Instrumentation Detectors Columns and Stationary Phases Applications GC-MS Schematic Interface less critical for capillary columns Several types of Mass Specs
More informationMETHYL ETHYL KETONE PEROXIDE 3508
METHYL ETHYL KETONE PEROXIDE 3508 C 8 H 16 O 4 MW: 176.21 CAS: 1338-23-4 RTECS: EL9450000; 21837 METHOD: 3508, Issue 2 EVALUATION: PARTIAL Issue 1: 15 August 1987 Issue 2: 15 August 1994 OSHA : NIOSH:
More informationGas Chromatography (GC)
Gas Chromatography (GC) Ahmad Aqel Ifseisi Assistant Professor of Analytical Chemistry College of Science, Department of Chemistry King Saud University P.O. Box 2455 Riyadh 11541 Saudi Arabia Office: AA53
More informationDetection of Volatile Organic Compounds in polluted air by an Agilent mini Thermal Desorber and an Agilent 5975T LTM GC/MS
Detection of Volatile Organic Compounds in polluted air by an Agilent mini Thermal Desorber and an Agilent 5975T LTM GC/MS Application Note Environmental Author Xiaohua Li Agilent Technologies (Shanghai)
More informationIV. DIRECT MEASUREMENT LABS. Introduction
IV. DIRECT MEASUREMENT LABS VI-1 I. Purpose Introduction An industrial hygienist frequently needs to evaluate airborne gas and vapor concentrations "on the spot". In other cases, he needs to track down
More informationFigure 1. Pore size distribution
Product Information '2:(;Ã237,325(Ã/ÃDQGÃ9 Polymeric Adsorbents Dow has developed a new polymeric adsorbent type for the concentration of organics from air and water. Key features of these adsorbents are:
More informationManganese III Digestion Method * (with chloride removal)
Method 10067 OXYGEN DEMAND, CHEMICAL (20 to 1,000 mg/l) For water and wastewater Manganese III Digestion Method * (with chloride removal) 1. Enter the stored program number for Manganese III COD. Press:
More informationGas Chromatography. Presented By Mr. Venkateswarlu Mpharm KTPC
Gas Chromatography Gas Chromatography Presented By Mr. Venkateswarlu Mpharm KTPC What is Gas Chromatography? It is also known as Gas-Liquid Chromatography (GLC) GAS CHROMATOGRAPHY Separation of gaseous
More informationCarbon dioxide removal processes by alkanolamines in aqueous organic solvents Hamborg, Espen Steinseth
University of Groningen Carbon dioxide removal processes by alkanolamines in aqueous organic solvents Hamborg, Espen Steinseth IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's
More informationSELECTED ION FLOW TUBE MASS SPECTROMETRY. Interscience Expert Center: VIP Meeting 15 Sept. 2009
SELECTED ION FLOW TUBE MASS SPECTROMETRY Interscience Expert Center: VIP Meeting 15 Sept. 2009 PROGRAM 14.00 u: The IS. X strategy 14.15 u: What exactly is SIFT-MS? 14.30 u: Developing methods on the Voice
More information