NEW NIOSH SAMPLING AND ANALYTICAL METHODS FOR OCCUPATIONAL EXPOSURE ASSESSMENT
|
|
|
- Linda Henderson
- 5 years ago
- Views:
Transcription
1 NEW NIOSH SAMPLING AND ANALYTICAL METHODS FOR OCCUPATIONAL EXPOSURE ASSESSMENT Kevin Ashley, Ph.D. US Department of Health and Human Services Centers for Disease Control and Prevention National Institute for Occupational Safety and Health Cincinnati, Ohio Etats-Unis INRS Chemical Risk Conference, Nancy, France, 9 April 2015
2 NIOSH Manual of Analytical Methods (NMAM) History 1 st Edition: nd Edition: P&CAM (Physical & Chemical Analysis Method) S-methods (Standards Completion Program) 3 rd Edition: Format and numbering scheme 4 th Edition: th Edition: since 2007
3 Newer NIOSH methods 1453 Vinyl Acetate (rev) 7704 Beryllium by Field-Portable Fluorometry 8007 Toluenein Blood 8326 S-BenzylmercapturicAcid and S-PhenylmercapturicAcid in urine (metabolites of toluene and benzene) 9106 Methamphetamine and Illicit Drugs on Wipes by Liquid-Liquid Extraction 9109 Methamphetamine and Illicit Drugson Wipes by Solid Phase Extraction 9110 Beryllium on Wipes by Field-Portable Fluorometry 9111 Methamphetamine on Wipes by LC/Mass Spec
4 Newest NIOSH methods [non-bio] ( ) 7906, 7907 & 7908 Inorganic acids 7302 & 7304 Elements (microwave digestion) 7306 Elements (capsule sampler) 5524 Metalworking fluids (rev) 501 & 5100 Gravimetric (capsule sampler)
5 NIOSH aerosol sampling guidance CFCs ) K Ashley & M Harper, J OccupEnviron Hyg10, D29 (2013) Recommendation: Include material adhering to internal cassette surfaces during sampling and analysis of airborne particles 25 mm & 37 mm plastic sampling cassettes
6 Air sampling with capsule inserts Gravimetric PVC: NIOSH 501 & 5100 Metals cellulosic/digestible: NIOSH 7306 (Courtesy of SKC, Inc.) (Courtesy of Zefon International)
7 Gravimetric analysis with PVC internal capsules Analytical figures of merit (AZ Road Dust): LOD mg/sample LOQ 0.25 mg/sample Range: LOQ to >5 mg/sample Weight stable for >28 days A 95 ±16 %
8 Ex. multielement data from interlab study: Aerosol-dosed cellulosic capsules (8 labs) Element /level (µg) Mean±Std. Dev. (µg/m 3 ) RSD (%) Cd (7.5) 5.5 ± Cr (75) 340 ± Co (3.0) 13 ± Cu (150) 110 ± Fe (150) 630 ± Pb(60) 260 ± Mn (3.0) 16 ± Ni (75) 59 ± M Harper & K Ashley, JOEH 10, 297 (2013)
9 Elemental analysis of cellulosic internal capsules (1. dissolution & 2. analysis by ICP-AES) 33 elements, 3 levels (+ blank media), 9-lab round-robin [Considering EN 482 uncertainty criterion] Elements with U< 30%: Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, La, Li, Mg,Mn, Mo, Ni, P, Pb, Sb, Se, Sr, Te, Ti, Tl, V, Y, Zn, Zr Elements with U> 30%: Ag,In, K,Sn, W
10 New NIOSH methods for inorganic acids (NIOSH-IFA MOU) 7906 PARTICULATE FLUORIDES AND GASEOUS HYDROGEN FLUORIDE 7907 VOLATILE ACIDS: HYDROCHLORIC, NITRIC AND HYDROBROMIC ACIDS 7908 NON-VOLATILE ACIDS: SULFURIC AND PHOSPHORIC ACIDS Based on MAK methods (DFG) Consistent with ISO (3-part std.)
11 Method 7906: Particulate fluorides and HF vapor Sample fluorides in prefilter section Collect HF vapor on impregnated filter Extract in basic buffer Analysis by ion chromatography IMPREGNATED FILTER PREFILTER [Cellulose nitrate filter media]
12 HF and F - measurements from test atmospheres Analyte Conc.(mg/m 3 ) Stddev RSD(%) U(%) (n=6) HF HF HF HF Fluoride Fluoride Fluoride Fluoride
13 Analytical range Fluoride: to >1 mg; 0.04 to >10 mg/m 3 (120-L sample) [NIOSH 7906, cont d] HF recovery at high RH HF: to >1 mg; 0.13 to >10 mg/m 3 (120-L sample)
14 METHOD 7907 FOR VOLATILE ACIDS Quartz fiber filters (prefilter & impregnated) Analytical figures of merit Acid Analytical range U(%) (mg/sample; mg/m 3* ) HCl ; <12 HNO ; <14 HBr ; <12 *[ 240-L air sample]
15 METHOD 7908 FOR NON-VOLATILE ACIDS Quartz fiber or PTFE filter (no prefilter) Analytical figures of merit Acid Analytical range U(%) (mg/sample; mg/m 3* ) H 2 SO ; <23 H 3 PO ; <23 *[420-L air sample]
16 New NIOSH biomonitoring methods Method no. Method name Biological indicator of 8007 Toluene in blood Exposure to toluene 8326 S-Benzylmercapturic Exposure to acid and S- toluene and phenylmercapturic benzene acid in urine Bromoproprionic Exposure to 1- acid in urine bromopropane 8319 Acetone and methyl ethyl ketone in urine Exposure to acetone and methyl ethyl ketone Sample prep. None C18 solidphase extraction Liquid-liquid extraction / derivatization None Analysis technique Headspace/ GC/FID LC/MS/MS GC/MS (SIM) Headspace/ GC/FID
17 Under development (exs.) Draft chapters: Pesticides Direct-reading monitors Biomonitoring guidelines Draft methods: Pesticides (wipe samples) VOCs & semi-volatiles by capillary GC Canister sampling of gases / vapors o-cresol in urine (biomarker) Ketones
18 Acknowledgments Davy Rousset, INRS, Vandoeuvre-lès-Nancy, France Dietmar Breuer, IFA, Sankt Augustin, Germany Sean O Connor, NIOSH, Cincinnati OH, USA Dale Shoemaker, NIOSH, Cincinnati OH, USA Martin Harper, NIOSH, Morgantown WV, USA
19 Contact information Kevin Ashley, Ph.D. US Department of Health and Human Services Centers for Disease Control and Prevention National Institute for Occupational Safety and Health 1090 Tusculum Ave., Mail Stop R-7 Cincinnati, Ohio (USA) Tel.: +1(513) ; 19
VOLATILE ACIDS by Ion Chromatography (Hydrogen Chloride, Hydrogen Bromide, Nitric Acid)
VOLATILE ACIDS by Ion Chromatography (Hydrogen Chloride, Hydrogen Bromide, Nitric Acid) 7907 Formulae: HCl; HBr; MW: Table 1 CAS: Table 1 RTECS: Table 1 METHOD: 7907, Issue 1 EVALUATION: FULL Issue 1:
Direct Analysis of Trace Metal Impurities in High Purity Nitric Acid Using ICP-QQQ
Application Note Semiconductor Direct Analysis of Trace Metal Impurities in High Purity Nitric Acid Using ICP-QQQ Authors Kazuo Yamanaka and Kazuhiro Sakai Agilent Technologies, Tokyo, Japan Introduction
Key Analytical Issues: Sample Preparation, Interferences and Variability. Tim Shelbourn, Eli Lilly and Company
Key Analytical Issues: Sample Preparation, Interferences and Variability Tim Shelbourn, Eli Lilly and Company Presentation Outline Sample preparation objectives and challenges Some common interferences
February 20, Joe Cerniglia The International Group for Historic Aircraft Recovery (TIGHAR) Job Number: S0CHG688. Dear Joe:
February 20, 2012 Joe Cerniglia The International Group for Historic Aircraft Recovery (TIGHAR) Subject: ICP-MS Report Job Number: S0CHG688 Dear Joe: Please find enclosed the procedure report for the analysis
Thermo Scientific icap RQ ICP-MS: Typical limits of detection
TECHNICAL NOTE 43427 Thermo Scientific icap RQ ICP-MS: Typical limits of detection Author Tomoko Vincent Keywords BEC, interference removal, KED, LOD Introduction Inductively Coupled Plasma Mass Spectrometry
Not Just for Paint Chips Anymore. High Throughput, Open Vessel Microwave Digestion of Matrices Requiring Moderate Conditions
Not Just for Paint Chips Anymore High Throughput, Open Vessel Microwave Digestion of Matrices Requiring Moderate Conditions Objective Develop a sample preparation procedure for analysis of a range of sample
ICP-OES Application Note Number 35
ICP-OES Application Note Number 35 Rapid measurement of major, minor and trace levels in soils using the Varian 730-ES Vincent Calderon Varian, Inc. Introduction As part of the global strategy for sustainable
Determination of Chromium in Gelatin Capsules using an Agilent 7700x ICP-MS
Determination of Chromium in Gelatin Capsules using an Agilent 7700x ICP-MS Application note Pharmaceutical Authors Miao Jing, Yingping Ni, Yanping Wang and Zhixu Zhang Agilent Technologies, China Introduction
New good practices for emission measurements. and relevance of the SRM with respect to these requirements/practices CEM 2014
New good practices for emission measurements and relevance of the SRM with respect to these requirements/practices CEM 2014 Jean Poulleau Cécile Raventos Evolution of French rules for emission measurements
Analysis of high matrix samples using argon gas dilution with the Thermo Scientific icap RQ ICP-MS
TECHNICAL NOTE 4322 Analysis of high matrix samples using argon gas dilution with the Thermo Scientific icap RQ ICP-MS Keywords Argon gas dilution, AGD, High matrix samples, Seawater Goal To critically
Samples compliant with the WATER
ENVIRONMENTAL analysis A routine method for the Quantitative Measurement of trace metals in WATER Samples compliant with the WATER Quality Standard EN ISO 17294 on the Agilent 7000 Series ICP-MS. Solutions
Industrial 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
Circle the letters only. NO ANSWERS in the Columns! (3 points each)
Chemistry 1304.001 Name (please print) Exam 4 (100 points) April 12, 2017 On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date Circle the letters only. NO ANSWERS in
Strategies 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
(50 pts.) 26. (24 pts.) 27. (8 pts.) 28. (18 pts.) TOTAL (100 points)
Moorpark College Chemistry 11 Spring 2011 Instructor: Professor Torres Examination #2: Section Two March 12, 2011 Name: (print) Name: (sign) Directions: Make sure your examination contains ELEVEN total
Occupational Health & Safety
Occupational Health & Safety Recognition of Hazard Process information MSDS evaluation (toxicity, VP, OEL etc) Manner of use (intensity and duration) Symptoms Evaluation of Hazard Control or Prevention
Basic Digestion Principles
Basic Digestion Principles 1 From Samples to Solutions Direct Analytical Method Solid Sample Problems: Mech. Sample Preparation (Grinding, Sieving, Weighing, Pressing, Polishing,...) Solid Sample Autosampler
Schedule. Draft Section of Lab Report Monday 6pm (Jan 27) Summary of Paper 2 Monday 2pm (Feb 3)
Schedule Assignment Due Date Draft Section of Lab Report Monday 6pm (Jan 27) Quiz for Lab 2 Peer Review of Draft Complete Lab Report 1 Tuesday 9:30am Wednesday 6pm Friday 6pm Summary of Paper 2 Monday
Direct Measurement of Metallic Impurities in 20% Ammonium Hydroxide by 7700s/7900 ICP-MS
Direct Measurement of Metallic Impurities in 20% Ammonium Hydroxide by 7700s/7900 ICP-MS Application Note Semiconductor Authors Junichi Takahashi Agilent Technologies Tokyo, Japan Abstract Ammonium hydroxide
METHOD: 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)
Chemistry 31A Autumn 2004 Professors Chidsey & Zare Exam 4 Name: 9:00am 10:00am 2:15pm 3:15pm 7:00pm 8:00pm S02 OC103 Charles
Chemistry 31A Autumn 2004 Professors Chidsey & Zare Exam 4 Name: SUNetID: @stanford.edu Honor Code Observed: (Signature) 9:00am 10:00am 2:15pm 3:15pm 7:00pm 8:00pm S02 OC103 Charles S04 OC103 Charles S06
Ground Water & UST Samples: Containers, Preservation and Hold Times Table
Ground Water & UST Samples: Containers, Preservation and Hold Times Table North Carolina Division of Water Resources, Water Sciences Section Chemistry Laboratory Reference: 40 CFR Part 136.3 Table II Listed
Name Date Class STUDY GUIDE FOR CONTENT MASTERY. covalent bond molecule sigma bond exothermic pi bond
Covalent Bonding Section 9.1 The Covalent Bond In your textbook, read about the nature of covalent bonds. Use each of the terms below just once to complete the passage. covalent bond molecule sigma bond
Using cold vapor generation atomic absorption to determine mercury impurities in pharmaceutical products
APPLICATION NOTE Using cold vapor generation atomic absorption to determine mercury impurities in pharmaceutical products AN43381 Dr. Jianfeng Cui, Thermo Fisher Scientific, Bremen, Germany Key Words al
Topic 3: Periodicity OBJECTIVES FOR TODAY: Fall in love with the Periodic Table, Interpret trends in atomic radii, ionic radii, ionization energies &
Topic 3: Periodicity OBJECTIVES FOR TODAY: Fall in love with the Periodic Table, Interpret trends in atomic radii, ionic radii, ionization energies & electronegativity The Periodic Table What is the periodic
Enhancing the productivity of food sample analysis with the Agilent 7700x ICP-MS
Enhancing the productivity of food sample analysis with the Agilent 77x ICP-MS Application note Foods testing Authors Sebastien Sannac, Jean Pierre Lener and Jerome Darrouzes Agilent Technologies Paris,
VIIIA H PREDICTING CHARGE
58 IA PREDICTING CHARGE VIIIA H IIA IIIA IVA VA VIA VIIA You can reliably determine the charge using our method for Groups IA, IIA, IIIB, Aluminum, and the Group VA, VIA, and VIIA NONMETALS Li Be B C N
7. Relax and do well.
CHEM 1215 Exam II John II. Gelder October 7, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility
Chemistry 2 Exam Roane State Academic Festival. Name (print neatly) School
Name (print neatly) School There are fifteen question on this exam. Each question is weighted equally. n the answer sheet, write your name in the space provided and your answers in the blanks provided.
materials and their properties
materials and their properties macroscopic properties phase state strength / stiffness electrical conductivity chemical properties color / transparence spectroscopical properties surface properties density
(C) Pavel Sedach and Prep101 1
(C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 2 (C) Pavel Sedach and Prep101 2 (C) Pavel Sedach and Prep101 3 (C) Pavel Sedach and Prep101 3 (C) Pavel Sedach
Reporting Category 1: Matter and Energy
Name: Science Teacher: Reporting Category 1: Matter and Energy Atoms Fill in the missing information to summarize what you know about atomic structure. Name of Subatomic Particle Location within the Atom
WRITING AN IONIC FORMULA
55 WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example:
HYDROCARBONS, 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
CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS
48 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified
Trace elemental analysis of distilled alcoholic beverages using the Agilent 7700x ICP-MS with octopole collision/ reaction cell
Trace elemental analysis of distilled alcoholic beverages using the Agilent 77x ICP-MS with octopole collision/ reaction cell Application note Food testing Author Glenn Woods Agilent Technologies Cheadle
RADIOLOGICAL CHARACTERIZATION Laboratory Procedures
RADIOLOGICAL CHARACTERIZATION Laboratory Procedures LORNA JEAN H. PALAD Health Physics Research Unit Philippine Nuclear Research Institute Commonwealth Avenue, Quezon city Philippines 3-7 December 2007
Materials of Construction and Chemical Compatibility for Sensing and Control Products
ADVANCED MATERIALS HANDLING TECHNICAL NOTE Materials of Construction and Compatibility for Sensing and Control Products INTRODUCTION Entegris Sensing and Control products are designed for use in highly
METHYLTIN 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
Example: If a simple ionic compound is made of these two ions, what is its formula? In the final formula, don't write the charges on the ions!
88 WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example:
Reporting Category 1: Matter and Energy
Name: Science Teacher: Reporting Category 1: Matter and Energy Atoms 8.5A Fill in the missing information to summarize what you know about atomic structure. Name of Subatomic Particle Location within the
Last 4 Digits of USC ID:
Chemistry 05 B Practice Exam Dr. Jessica Parr First Letter of last Name PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: Last 4 Digits of USC ID: Lab TA s Name: Question Points Score Grader 8 2 4 3 9 4 0
Unit 1 Part 2 Atomic Structure and The Periodic Table Introduction to the Periodic Table UNIT 1 ATOMIC STRUCTURE AND THE PERIODIC TABLE
UNIT 1 ATOMIC STRUCTURE AND THE PERIODIC TABLE PART 2 INTRODUCTION TO THE PERIODIC TABLE Contents 1. The Structure of the Periodic Table 2. Trends in the Periodic Table Key words: group, period, block,
Total Elemental Analysis of Food Samples for Routine and Research Laboratories, using the Thermo Scientific icap RQ ICP-MS
Total Elemental Analysis of Food Samples for Routine and Research Laboratories, using the Thermo Scientific icap RQ ICP-MS Tomoko Vincent 1, Simon Lofthouse 2, Daniel Kutscher 1 and Shona McSheehy Ducos
8. Relax and do well.
CHEM 1225 Exam III John III. Gelder April 8, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last two pages includes a periodic table and
Current State of Extraction Don t Be Deceived! Sharon F. Webb, Ph.D. Director of Quality Program
Current State of Extraction Don t Be Deceived! Sharon F. Webb, Ph.D. Director of Quality Program Overview Factors Purpose of Dissolution Quality Objectives of Program Effectiveness of Dissolution Technique
Determination of Impurities in Silica Wafers with the NexION 300S/350S ICP-MS
APPLICATION NOTE ICP - Mass Spectrometry Author Kenneth Ong PerkinElmer, Inc. Singapore Determination of Impurities in Silica Wafers with the NexION 300S/350S ICP-MS Introduction The control of impurity
EXAMPLES. He VIA VIIA Li Be B C N O F Ne
59 IA EXAMPLES VIIIA H IIA IIIA IVA VA He VIA VIIA Li Be B C N O F Ne Na Mg IIIB IVB VB Al Si P VIB VIIB VIIIB IB IIB S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru
Multi Analyte Custom Grade Solution. Aluminum, Potassium, Magnesium, ANALYTE CERTIFIED VALUE ANALYTE CERTIFIED VALUE
1.0 ACCREDITATION / REGISTRATION INORGANIC VENTURES is accredited to ISO Guide 34, "General Requirements for the Competence of Reference Material Producers" and ISO/IEC 17025, "General Requirements for
WRITING AN IONIC FORMULA
55 WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example:
CHEM 107 (Spring-2004) Exam 2 (100 pts)
CHEM 107 (Spring-2004) Exam 2 (100 pts) Name: ------------------------------------------------------------------------, SSN -------------------------------- LAST NAME, First (Circle the alphabet segment
The Agilent 7700x ICP-MS Advantage for Drinking Water Analysis
The Agilent 77x ICP-MS Advantage for Drinking Water Analysis Application Note Environmental Authors Steve Wilbur Agilent Technologies, Inc. 338 146th Place SE, Suite 3, Bellevue Washington, 987 USA Introduction
Analytical Method Determination of airborne metal concentrations by ICP-MS Sampling using Solu-Sert filter capsules
Analytical Method Determination of airborne metal concentrations by ICP-MS Sampling using Solu-Sert filter capsules Method Technical Manager Mickaël Calosso, M. Sc., Chemist Contributor to this version
Media blank result for a single-section sampler (e.g., membrane filter). Media blank result for back section of a sampler.
IV. GLOSSARY OF ABBREVIATIONS, DEFINITIONS, AND SYMBOLS AAS Acceptable range (biological) Accuracy ACGIH Ashing ASV B B b B f Bias Bioaerosol Biological monitoring Blank Atomic absorption spectrophotometry.
7. Relax and do well.
CHEM 1215 Exam II John II. Gelder October 7, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility
7. Relax and do well.
CHEM 1215 Exam II John II. Gelder October 13, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility
AIR. 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
Fall 2011 CHEM Test 4, Form A
Fall 2011 CHEM 1110.40413 Test 4, Form A Part I. Multiple Choice: Clearly circle the best answer. (60 pts) Name: 1. The common constituent in all acid solutions is A) H 2 SO 4 B) H 2 C) H + D) OH 2. Which
EXAMPLES. He VIA VIIA Li Be B C N O F Ne
59 IA EXAMPLES VIIIA H IIA IIIA IVA VA He VIA VIIA Li Be B C N O F Ne Na Mg IIIB IVB VB Al Si P VIB VIIB VIIIB IB IIB S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru
Chemical mass closure of atmospheric aerosol collected over Athens, Greece.
Chemical mass closure of atmospheric aerosol collected over Athens, Greece. Paraskevopoulou D. 1, 2, Liakakou E. 1, Theodosi C. 2, Zarmpas P. 2, Gerasopoulos E. 1 1, 2*, Mihalopoulos N. 1 Institute for
Chem 112, Fall 05 Exam 2a
Name: YOU MUST: Put your name and student ID on the bubble sheet correctly. Put all your answers on the bubble sheet. Please sign the statement on the last page of the exam. Please make sure your exam
Name: SCH3U Worksheet-Trends
PERIODIC TRENDS WORKSHEET 1. Choose which statement about the alkali metals lithium and cesium is correct. a) as the atomic number increases, the Electronegativity of the elements increases b) as the atomic
Moorpark College Chemistry 11 Fall 2011 Instructor: Professor Gopal. Examination #2: Section Two October 17, Name: (print)
Moorpark College Chemistry 11 Fall 2011 Instructor: Professor Gopal Examination #2: Section Two October 17, 2011 Name: (print) Directions: Make sure your examination contains ELEVEN total pages (including
Elemental Scientific. Spike Recovery. Elemental Scientific
Elemental Scientific prepfast ICP-MS: USP Oral Drugs by Dissolution Automated Inline Calibration and Sample Dilution Authors: Kyle Uhlmeyer and Paul Field (field@icpms.com) Brief The prepfast
Three hour lab. Chem : Feb Experiment 2 Session 2. Experiment 2 Session 2 Electrons and Solution Color
Chem.25-26: Feb. 5 - Experiment 2 Session 2 Preparation Pre-lab prep and reading for E2, Parts 3-5 Experiment 2 Session 2 Electrons and Solution Color Three hour lab Complete E2 (Parts - 5) Prepare discussion
ORBITAL DIAGRAM - A graphical representation of the quantum number "map" of electrons around an atom.
178 (MAGNETIC) SPIN QUANTUM NUMBER: "spin down" or "spin up" - An ORBITAL (region with fixed "n", "l" and "ml" values) can hold TWO electrons. ORBITAL DIAGRAM - A graphical representation of the quantum
CERTIFICATE OF. Single Analyte Mass Spec Solution ± 0.1 µg/ml g/ml (measured at 20 ± 4 ºC)
CERTIFICATE OF ANALYSIS 300 Technology Drive Christiansburg, VA 24073. USA inorganicventures.com tel: 800.669.6799. 540.585.3030 fax: 540.585.3012 info@inorganicventures.com 1.0 ACCREDITATION / REGISTRATION
CHEMICAL COMPOUNDS. - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds!
69 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified
CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS
48 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified
Fast Analysis of Water Samples Comparing Axially-and Radially- Viewed CCD Simultaneous ICP-OES
Fast Analysis of Water Samples Comparing Axially-and Radially- Viewed CCD Simultaneous ICP-OES Application Note Inductively Coupled Plasma-Optical Emission Spectrometers Author Tran T. Nham Introduction
IONIC COMPOUNDS. - USUALLY form from metals combining with nonmetals, or from metals combining with metalloids
52 IONIC COMPOUNDS - USUALLY form from metals combining with nonmetals, or from metals combining with metalloids Examples: - almost always solid at room temperature, and usually have relatively high melting
New good practices for emission measurements and relevance of the SRM with respect to these requirements/practice
New good practices for emission measurements and relevance of the SRM with respect to these requirements/practice INERIS Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte France, Jean Poulleau,
WRITING AN IONIC FORMULA
WRITING AN IONIC FORMULA - if you know the ions that make up a compound, all you need to do is find the smallest ratio of cation to anion the compound needs to have an overall charge of zero Example: If
CHAPTER 7: CHEMICAL FORMULAS AND CHEMICAL COMPOUNDS. Chemistry 1-2 Enriched Mr. Chumbley
CHAPTER 7: CHEMICAL FORMULAS AND CHEMICAL COMPOUNDS Chemistry 1-2 Enriched Mr. Chumbley SECTION 1: CHEMICAL NAMES AND FORMULAS While the bulk of the content will come from the Naming Chemical Compounds
ORGANOPHOSPHORUS 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:
Lewis dot structures for molecules
1 Lewis dot structures for molecules In the dot structure of a molecule, - SHARED valence electrons are shown with dashes - one per pair. - UNSHARED valence electrons ("lone pairs") are represented by
Chapter 5: Nomenclature
Chem 1025 Prof George W.J. Kenney, Jr Introductory Chemistry, Zumdahl Decoste, 6th ed Last Update: 21July09 Chapter 5: Nomenclature These Notes are to SUPPLIMENT the Text, They do NOT Replace reading the
- When atoms share electrons, the electrons might not be EVENLY shared. Shared electrons may spend more time around one atomic nucleus than the other.
228 POLARITY - When atoms share electrons, the electrons might not be EVENLY shared. Shared electrons may spend more time around one atomic nucleus than the other. - When electrons are shared UNEVENLY,
Review. 8th grade science STAAR. Name Class. Underline your strong TEKS and circle your weak TEKS: 8.5A Atoms. 7.5C Energy Flow Through Ecosystems
8th grade science STAAR Review Name Class Underline your strong TEKS and circle your weak TEKS: 8.5A Atoms 7.5C Energy Flow Through Ecosystems 8.5B Reactivity 8.5C Periodic Table 8.5D Chemical Formulas
CHEM 108 (Spring-2008) Exam. 3 (105 pts)
CHEM 08 (Spring-008) Exam. (05 pts) Name: --------------------------------------------------------------------------, CLID # -------------------------------- LAST NAME, First (Circle the alphabet segment
CHEM 130 Exp. 8: Molecular Models
CHEM 130 Exp. 8: Molecular Models In this lab, we will learn and practice predicting molecular structures from molecular formulas. The Periodic Table of the Elements IA 1 H IIA IIIA IVA VA VIA VIIA 3 5
Half Yearly Exam 2015
GOZO COLLEGE Secondary School KULLEĠĠ TA GĦAWDEX Skola Sekondarja Half Yearly Exam 015 Year 9 Track 3 CHEMISTRY Time: 1½ hours Name: Class: Useful Data: Atomic numbers and relative atomic masses are given
Thermo Scientific icap TQ ICP-MS: Typical limits of detection
TECHNICAL NOTE 43287 Thermo Scientific icap TQ ICP-MS: Typical limits of detection Authors Tomoko Vincent Keywords BEC, LOD, SQ-KED, TQ mass shift, TQ on mass, typical performance Introduction Inductively
NAME (please print) MIDTERM EXAM FIRST LAST JULY 13, 2011
CEMISTRY 140A NAME (please print) MIDTERM EXAM IRST LAST JULY 13, 2011 SIGNATURE Vollhardt & Schore 6 th Edition Cp. 1 through 5 ID NUMBER LAST NAME PERSN SEATED IN T YUR RIGT: LAST NAME PERSN SEATED T
E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions
E5 Lewis Acids and Bases: lab 2 Session one lab Parts 1and 2A Session two lab Parts 2B, 3, and 4 Part 2B. Complexation, Structure and Periodicity Compare the reactivity of aquo complex ions containing
METHYL 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:
Polar bonds, polar molecules and the shape of molecules.
Chapter 3 Polar bonds, polar molecules and the shape of molecules. Polar and non-polar bonds In homonuclear diatomic molecules such as H 2 or Cl 2 electrons are shared equally between equal atoms. The
3 What Happens When Chemicals Are Put Together?
1 COMBUSTION REACTIONS Write the balanced chemical equations for the combustion of the following fuels: propane, C H + 5O fi CO + 4H O butane, C 4 H 10 + 1 / O fi 4CO + 5H O ethanol, C H 5 OH + O fi CO
Agilent Technologies at TIAFT 2013
Agilent Technologies at TIAFT 2013 Analytical approaches for the measurement of trace metals in forensic samples Funchal, Madeira September 2-6 CRIMINALISTIC TOXICOLOGY DNA INVESTIGATION DOCUMENT EXAMINATION
Microsoft Excel Directions
Microsoft Excel Directions 1. Working in groups of two, log onto a computer. 2. Create a folder on the desktop a. Right click anywhere on the desktop new folder Name the folder Chemistry 3. Open MS Excel
Chemistry Standard level Paper 1
M15/4/CHEMI/SPM/ENG/TZ1/XX Chemistry Standard level Paper 1 Thursday 14 May 2015 (afternoon) 45 minutes Instructions to candidates Do not open this examination paper until instructed to do so. Answer all
CHEMICAL COMPOUNDS MOLECULAR COMPOUNDS
48 CHEMICAL COMPOUNDS - Dalton's theory does not mention this, but there is more than one way for atoms to come together to make chemical compounds! - There are TWO common kinds of chemical compound, classified
Multi Analyte Custom Grade Solution. Calcium, Iron, Potassium,
1.0 ACCREDITATION / REGISTRATION INORGANIC VENTURES is accredited to ISO Guide 34, "General Requirements for the Competence of Reference Material Producers" and ISO/IEC 17025, "General Requirements for
E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions. Aquo Complex Ion Reactions
E5 Lewis Acids and Bases: lab 2 Session one lab Parts 1and 2A Part 2B. Complexation, Structure and Periodicity Compare the reactivity of aquo complex ions containing pre-transition, transition, and post-transition
SeCtiOn 5 [STOCK AND CUSTOM] Assurance. Multi-Element CLP Standards
![SeCtiOn 5 [STOCK AND CUSTOM] Assurance. Multi-Element CLP Standards](/thumbs/91/106575128.jpg "SeCtiOn 5 [STOCK AND CUSTOM] Assurance. Multi-Element CLP Standards")
SeCtiOn 5 [STOCK AND CUSTOM] Assurance Multi-Element CLP Standards Your Science is Our Passion. Assurance CLPStandards SPEX CertiPrep offers acomplete series of multi-element standards and blanks designed
TRU Chemistry Contest Chemistry 12 May 21, 2003 Time: 90 minutes
TRU Chemistry Contest Chemistry 12 May 21, 2003 Time: 90 minutes Last Name First name School Teacher Please follow the instructions below. We will send your teacher a report on your performance. Top performers
ICP/MS Multi-Element Standards
Standards Ultra Pure Matrix Special Packaging Traceability to National Reference Materials AccuStandard s ICP/MS Standards are formulated to meet the needs of this very special instrument. As matrix effect
Instructions. 1. Do not open the exam until you are told to start.
Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this
Dust and Gas Stack Emission Proficiency Tests
page 1 of 12 Information Sheet Dust and Gas Stack Emission Proficiency Tests 1. Location 2. Contact 3. Participants Hessisches Landesamt für Naturschutz, Umwelt und Geologie Dezernat I3 Luftreinhaltung:
CHEM 171 EXAMINATION 1. October 9, Dr. Kimberly M. Broekemeier. NAME: Key
CHEM 171 EXAMINATION 1 October 9, 008 Dr. Kimberly M. Broekemeier NAME: Key I A II A III B IV B V B VI B VII B VIII I B II B III A IV A V A VI A VII A inert gase s 1 H 1.008 Li.941 11 Na.98 19 K 9.10 7