ICCE 2017 Monitoring water quality using passive sampling in kinetic mode:
|
|
- Victoria Nash
- 6 years ago
- Views:
Transcription
1 ICCE 217 Monitoring water quality using passive sampling in kinetic mode: A new calibration approach using the concentration ratio of passive samplers with different thicknesses Hanna Fuchte Hanna.Fuchte@bio5.rwth-aachen.de Institute of Environmental Research, RWTH Aachen University Andreas Schäffer, Kees Booij, Kilian Smith 1
2 Introduction Monitoring pollutants in natural and waste water is essential to protect ecosystems and human health. Passive sampling: Promising tool to measure freely dissolved concentrations of a broad range of pollutants. How it works: pollutants distribute between water and sampler phases driven by the difference in the pollutants chemical potential in the two phases C w C s 2
3 Introduction Monitoring pollutants in natural and waste water is essential to protect ecosystems and human health. Passive sampling: Promising tool to measure freely dissolved concentrations of a broad range of pollutants. Advantages: clean samples with upconcentrated analytes; time weighted average (in kinetic mode); bioavailable concentration C w C s 3
4 Introduction Monitoring pollutants in natural and waste water is essential to protect ecosystems and human health. Passive sampling: Promising tool to measure freely dissolved concentrations of a broad range of pollutants. This approach was tested using silicone passive samplers for non - polar substances C w C s 4
5 Introduction Kinetic region C S = C W K SW 1 exp k e t Uptake kinetics have to be known Performance Reference Compounds: Sometimes expensive and not always available Equilibrium C S = C W K SW For very hydrophobic substances equilibrium attainment can take month C w C s C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml), K SW = equilibrium sampler to water partitioning coefficient, k e = uptake rate constant (1/h), t = time (h) 5
6 Passive Sampling with two samplers of different thicknesses same architecture same hydrodynamic regime same surface area different volumes (V thick and V thin ) Temporal evolution of concentrations (C thick and C thin ): Temporal evolution of accumulated amounts (N thick and N thin ): C thin C thick in equilibrium: N thick /N thin = V thick /V thin N thick N thin Similar amounts 6
7 Concentration Ratio Approach for Determining Dissolved Environmental Concentrations C thin C thick Equilibrium sampling: C S = C W K SW differences in amounts measurement error Hypothesis: When two samplers made of the same silicone material and with the same surface area but different volumes are deployed in parallel in the same hydrodynamic regime, measuring the ratio of their concentrations at a single point during the kinetic uptake phase allows the dissolved concentration in the surrounding medium to be determined. C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml), K SW = equilibrium sampler to water partitioning coefficient 7
8 C s [ng/ml] Considerations and Calculations k e,thin and k e,thick can be derived from measurements but also from theory: From kinetic measurements: thin sampler thick sampler C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml), K SW = equilibrium sampler to water partitioning coefficient, k e = uptake rate constant (1/h), t = time (h) 8
9 Considerations and Calculations From theory: When samplers are deployed in parallel: Same k O, same A and same K SW : Concentration Ratio Approach - equation C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml), K SW = partitioning coefficient, k e = uptake rate constant (1/h), t = time (h), k O = mass-transfer coefficient (cm/h), A = sampler surface area (cm 2 ), V S = volume of the sampler (cm 3 ) 9
10 Experimental setup Stirred and unstirred system Constant dissolved concentrations via passive dosing sheets loaded with polycyclic aromatic hydrocarbons (PAHs) at ca..1 ng/ml Water samples taken at start and end for extraction and analysis Passive samples thick and thin PDMS discs (n=5 each) A=1.57 cm 2 ; V=.16 and.64 cm 3 ; Ø=1cm taken out at t = 8, 24, 56, 12 and 223 hours extracted and analysed via GC-MS 1
11 C s [ng/ml] Calculation example Phenanthrene stirred 24 h 8 6 Artificially vary C w 4 2 thin sampler thick sampler Look where equation approaches zero (= where graph crosses the x axis) C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml), K SW = equilibrium sampler to water partitioning coefficient 11
12 C s [ng/ml] Results - all timepoints Example: Phenanthrene stirred thin sampler thick sampler KINETIC UPTAKE REGIME C W calculated by different thicknesses approach EQUILIBRIUM C W calculated by K sw 24 h 56 h 12 h 223 h C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml), K SW = equilibrium sampler to water partitioning coefficient 12
13 C s [ng/ml] C s [ng/ml] C s [ng/ml] C s [ng/ml] C w [ng/ml] C s [ng/ml] C s [ng/ml] C s [ng/ml] C s [ng/ml] Results early and late timepoint different substances stirred and unstirred thin sam thick sam, ,5,4,3,2,1, Cw measured C w sampler 56 h Cw sampler 223 h FLU stirred FLU unstirred PHE stirred PHE unstirred PYR stirred PYR unstirred BKF stirred thin sampler thick sampler Phenanthrene static C S = passive sampler conc. (ng/ml), C W = dissolved concentration (ng/ml) thin sampler thick sampler 13 1
14 Outlook Practical application: When an appreciable degree of equilibrium in at least the thin sampler is attained efficient possibility of determining environmental dissolved concentrations during kinetic sampling thin thick Limitations of approach: In those cases where sampling in the early stage of kinetic uptake is needed (e.g. highly hydrophobic substances) Method needs further optimization 14
15 Thank you for your attention! Acknowledgements: This research was funded by the Ministry of Innovation, Higher Education and Research of North Rhine-Westphalia
Supporting Information
Supporting Information Quantifying the Effects of Temperature and Salinity on Partitioning of Hydrophobic Organic Chemicals to Silicone Rubber Passive Samplers Michiel T.O. Jonker 1 *, Stephan A. van der
More informationDorothea Gilbert, Espen Eek, Naiara Berrojalbiz, Amy MP Oen and Hans Peter H. Arp. Norwegian Geotechnical Institute, Oslo
Innovative passive sampling techniques at the sediment-water and air-water interface for monitoring the presence and fluxes of hydrophobic organic contaminants Dorothea Gilbert, Espen Eek, Naiara Berrojalbiz,
More informationMathematical Modelling of Partitioning Processes of Polycyclic Aromatic Hydrocarbons as Gas Waste
Mathematical Modelling of Partitioning Processes of Polycyclic Aromatic Hydrocarbons as Gas Waste Jelena Radonić a, Mirjana Vojinović Miloradov a, Maja Turk Sekulić a, Ivan Holoubek b and Maja Đogo a a
More information*
Supporting information: ACTIVATED CARBON AND BIOCHAR AMENDMENTS DECREASE POREWATER CONCENTRATIONS OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) IN SEWAGE SLUDGES Patryk Oleszczuk 1,2*, Sarah Hale 1, Johannes
More informationAppNote 2/2000. Stir Bar Sorptive Extraction (SBSE) applied to Environmental Aqueous Samples
AppNote 2/2 Stir Bar Sorptive Extraction (SBSE) applied to Environmental Aqueous Samples Pat Sandra Department of Organic Chemistry, University of Gent, Krijgslaan 281 S4, B-9 Gent, Belgium Erik Baltussen
More informationChapter 4. Freely dissolved pore water concentrations and sorption coefficients of PAHs in spiked, aged and field-contaminated soils
Chapter Freely dissolved pore water concentrations and sorption coefficients of PAHs in spiked, aged and field-contaminated soils Thomas L. ter Laak, Arjan Barendregt and Joop L. M. Hermens IRAS - Institute
More informationThe direct effect of the harbour. micropollutant concentration. Workshop Characterization of atmospheric pollution in harbour areas 26 June 2013
pollution in harbour areas 26 June 2013 The direct effect of the harbour of Brindisi on organic micropollutant concentration Elena Gregoris, Andrea Gambaro Institute for the dynamics of the environmental
More informationMETHOD 3600B CLEANUP
METHOD 3600B CLEANUP 1.0 SCOPE AND APPLICATION 1.1 Method 3600 provides general guidance on selection of cleanup methods that are appropriate for the target analytes of interest. Cleanup methods are applied
More informationEnvironmental Forensic Principals for Sources Allocation of Polycyclic Aromatic Hydrocarbons
Investigate Integrate Innovate Environmental Forensic Principals for Sources Allocation of Polycyclic Aromatic Hydrocarbons October 2008 Presented by: Gwen O Sullivan, Erik Martin and Court D. Sandau Presentation
More informationPolycyclic Aromatic. atmosphere of Guangzhou,
Size distributions of Polycyclic Aromatic Hydrocarbons in the urban atmosphere of Guangzhou, China Huan Yu and Jian Zhen Yu Dept of Chemistry Hong Kong University of Science and Technology yuhuan@ust.hkhk
More informationThin film microextraction
Thin film microextraction by Zhipei Qin A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Doctor of Philosophy in Chemistry Waterloo, Ontario,
More informationConsideration of Non-radioactive Harmful Substances
Consideration of Non-radioactive Harmful Substances Dr. Petra Steinbach, Matthias Bothe Verein für Kernverfahrenstechnik und Analytik Rossendorf e.v. PF 510119, 01314 Dresden, Germany matthias.bothe@vkta.de
More informationTraining Course on Passive Sampling
Training Course on Passive Sampling Speaker: Dr Kees Booij (PaSOC) Passive sampling has been shown to be a suitable alternative to traditional sampling techniques to overcome sensitivity and representativeness
More informationHow to influence bioavailability for reducing risks from organic pollutants in bioremediation
How to influence bioavailability for reducing risks from organic pollutants in bioremediation Jose Julio Ortega-Calvo Instituto de Recursos Naturales y Agrobiologia de Sevilla (CSIC) jjortega@irnase.csic.es
More informationMETHOD 3600C CLEANUP
METHOD 3600C CLEANUP 1.0 SCOPE AND APPLICATION 1.1 Method 3600 provides general guidance on selection of cleanup methods that are appropriate for the target analytes of interest. Cleanup methods are applied
More informationTar measurement by the Solid Phase Adsorption (SPA) method
Tar measurement by the Solid Phase Adsorption (SPA) method A.J. Grootjes Presented at the 19th European Biomass Conference and Exhibition (EU BC&E), ICC Berlin, Germany (Conference 6-10 June 2011 - Exhibition
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 informationA simple QSPR model for predicting soil sorption coefficients of polar and non-polar organic compounds from molecular formula
A simple QSPR model for predicting soil sorption coefficients of polar and non-polar organic compounds from molecular formula J. Chem. Inf. Comput. Sci. Eduardo J. Delgado, Joel B. Alderete, and Gonzalo
More informationMEASUREMENT OF DRY DEPOSITION AMOUNT OF PAHS IN ZONGULDAK REGION
Journal of Young Scientist, Volume II, 2014 ISSN 2344-1283; ISSN CD-ROM 2344-1291; ISSN Online 2344-1305; ISSN-L 2344 1283 MEASUREMENT OF DRY DEPOSITION AMOUNT OF PAHS IN ZONGULDAK REGION Eren KARAKAVUZ
More informationSupporting Information to: Field evaluation of a passive personal air sampler for PAH exposure in. workplaces
This journal is The Royal Society of Chemistry 21 Supporting Information to: Field evaluation of a passive personal air sampler for PAH exposure in workplaces Pernilla Bohlin 1 *, Kevin C. Jones 2, Jan-Olof
More informationApplication Note. Abstract. Introduction. Determination of Polycyclic Aromatic Hydrocarbons in Seafood by an Automated QuEChERS Solution
Application Note Abstract Determination of Polycyclic Aromatic Hydrocarbons in Seafood by an Automated QuEChERS Solution Page 1 Polycyclic Aromatic Hydrocarbons (PAHs) are a large group of organic compounds
More informationTHE USE OF ORGANOCLAY IN MANAGING DISSOLVED ORGANIC CONTAMINANTS RELEVANT TO CONTAMINATED SEDIMENTS
THE USE OF ORGANOCLAY IN MANAGING DISSOLVED ORGANIC CONTAMINANTS RELEVANT TO CONTAMINATED SEDIMENTS Organoclay has great potential as a permeable adsorptive barrier in treating contaminated groundwater
More informationFacility: Mansfield Revision 3. Title: PAHs by SPME Page 1 of 11
Title: PAHs by SPME Page 1 of 11 Determination of Parent and Alkyl Polycyclic Aromatics in sediment Pore Water Using Solid-Phase Microextraction and Gas Chromatography/Mass Spectrometry in Selected Ion
More informationRemoval of PAHs Compounds from Aqueous Solution with Modified Zeolites. M.A.Sc. candidate May 12, 2017 UBC
Removal of PAHs Compounds from Aqueous Solution with Modified Zeolites Monireh S. Hedayati Supervisor: Professor Li M.A.Sc. candidate May 12, 2017 UBC Agenda Background (PAHs & Surfactants) Research questions
More informationDetermination of Polycyclic Aromatic Hydrocarbons (PAHs) in Seafood Using GC/MS
Determination of Polycyclic Aromatic Hydrocarbons (PAHs) in Seafood Using GC/MS UCT Part Numbers: ECQUUS2-MP (4 g of muffled anh. MgSO 4 and 2 g of NaCl) ECPAHFR50CT (50 ml centrifuge tubes, PAHs removed)
More informationSupporting information
Supporting information MOF-derived hollow carbon nanocubes for fast solid-phase microextraction of polycyclic aromatic hydrocarbons Xingru Hu, Chaohai Wang, Jiansheng Li,* Rui Luo, Chao Liu, Xiuyun Sun,
More informationMETHOD 8100 POLYNUCLEAR AROMATIC HYDROCARBONS
METHOD 8100 POLYNUCLEAR AROMATIC HYDROCARBONS 1.0 SCOPE AND APPLICATION 1.1 Method 8100 is used to determine the concentration of certain polynuclear aromatic hydrocarbons (PAH). Table 1 indicates compounds
More informationChemical Enrichment of the ISM by Stellar Ejecta
Chemical Enrichment of the ISM by Stellar Ejecta Sun Kwok The University of Hong Kong IAU GA Beijing, Special Session 12, August 31, 2012 Molecular synthesis in the late stages of stellar evolution It
More informationPassive, Adsorbent-Based Sediment Pore Water Sampling
Passive, Adsorbent-Based Sediment Pore Water Sampling 2013 NEMC August 5, 2013 Jim Whetzel Amplified Geochemical Imaging, LLC. (AGI) Special thanks to Kathy West, URS Corporation Ken Alepidis and Sean
More informationPhotochemistry of Nitro-Polycyclic Aromatic Hydrocarbons. August 9, 2011
Photochemistry of Nitro-Polycyclic Aromatic Hydrocarbons August 9, 2011 Photochemistry focuses on the absorption of light by atoms and molecules leading to chemical reactions. With the absorption of light,
More informationNumerical investigation of cavitation-regimes in a converging-diverging nozzle
Numerical investigation of cavitation-regimes in a converging-diverging nozzle 1 Polina Gorkh, 1 Steffen J. Schmidt, and 1 Nikolaus A. Adams 1 Institute of Aerodynamics and Fluid Mechanics, Department
More information(PAHs) (USEPA) PAH.(Chen, et al., 2008) . PAHs PAH. 100.(Denton, et al., 1999) (PAHs) PAHs. PAHs. PAHs
6-1 90 59 (PAHs) 4 3 2 1... -1 savari53@yahoo.com -2 nikpour1342@yahoo.com -3 kamalghanemi@gmail.com -4 89/10/4: 89/6/15: (PAHs).. PAHs. PAHs.. (Chr/BaA) (a) (Fla/Pyr) (Phe/Ant) (LMW/HMW) 88. 16 UV (HPLC)
More informationMode of action approaches to mixtures. Joop Hermens Institute for Risk Assessment Sciences Utrecht University
Mode of action approaches to mixtures Joop Hermens Institute for Risk Assessment Sciences Utrecht University Mixtures Is the knowledge sufficient for implementing mixture toxicity in regulations? If we
More informationAdsorption of Humic acid on Powdered Activated Carbon (PAC)
Adsorption of Humic acid on Powdered Activated Carbon (PAC) Department of Civil and Environmental Engineering, MSU, East Lansing, MI, 48824, USA Abstract Removal capacity and rate of Humic Acid (HA) onto
More informationElectronic Supplementary Information
Electronic Supplementary Information Silicone passive equilibrium samplers as chemometers in eel and sediment of a Swedish lake Annika Jahnke, Philipp Mayer, Michael S. McLachlan, Håkan Wickström, Dorothea
More informationCoal Tar Forensics. Russell Thomas - WSP/PB Chris Gallacher and Robert Kalin - University of Strathclyde. YCLF February 2017
Coal Tar Forensics Russell Thomas - WSP/PB Chris Gallacher and Robert Kalin - University of Strathclyde YCLF February 2017 WHAT IS COAL TAR? 2 A by-product of gas manufacturing & coke making Complex mixture
More informationNot to be cited without prior reference to the author
ICES CM 2007/J:14 Not to be cited without prior reference to the author DOES TENAX EXTRACTION BASED DESORPTION MEASURE (BIO)AVAILABILITY OF SEDIMENT-ASSOCIATED CONTAMINANTS? Jarkko Akkanen, Arto Sormunen,
More informationElectroanalytical Chemistry techniques covered to date
Electroanalytical Chemistry techniques covered to date Potentiometry based on galvanic cell Controlled Potential Electrolysis electrolytic Chronoamperometry electrolytic cell Chronopotentiometry electrolytic
More informationSchool of Computer Science and Communication, Royal Institute of Technology, Stockholm, Sweden, 3
Presented at the COMSOL Conference 2009 Milan Qasim Ali Chaudhry 1, Michael Hanke 2, Ralf Morgenstern 3 1,2 School of Computer Science and Communication, Royal Institute of Technology, Stockholm, Sweden,
More informationChemical Instrumentation CHEM*3440 Mid-Term Examination Fall 2005 TUESDAY, OCTOBER 25, 2005
Chemical Instrumentation CHEM*3440 Mid-Term Examination Fall 2005 TUESDAY, OCTOBER 25, 2005 Duration: 2 hours. You may use a calculator. No additional aids will be necessary as a series of data and equation
More informationINDIANA HARBOR AND CANAL AIR MONITORING DATA ANALYSIS
INDIANA HARBOR AND CANAL AIR MONITORING DATA ANALYSIS Prepared by U.S. Army Corps of Engineers Chicago District July 25, 2014 1 This Page Left Intentionally Blank 2 INDIANA HARBOR AND CANAL AIR MONITORING
More informationCharacterisation and comparison of the uptake of ionizable and polar pesticides,
Electronic Supplementary Material (ESI) for Environmental Science: Processes & Impacts. This journal is The Royal Society of Chemistry 214 Supporting Information for: Characterisation and comparison of
More informationChapter 1. Introduction
Introduction 1 Introduction Scope Numerous organic chemicals are introduced into the environment by natural (e.g. forest fires, volcanic activity, biological processes) and human activities (e.g. industrial
More informationKa of Unknown Acid In this experiment you will determine the Ka of an unknown acid by titration with the sodium hydroxide.
Ka of Unknown Acid In this experiment you will determine the Ka of an unknown acid by titration with the sodium hydroxide. Because you will be titrating an unknown acid again, you will be using many of
More informationInvestigation of Mixed Gas Sorption in Lab-Scale. Dr. Andreas Möller
Investigation of Mixed Gas Sorption in Lab-Scale Dr. Andreas Möller 1 Technical Necessity: Application of porous Materials as Adsorbents Fine cleaning of Gases (i.e. purification of H 2, natural gas, bio
More informationQUALIFICATION SPECIFICATION
QUALIFICATION SPECIFICATION Nuclear & Integrated Nuclear Engineering & Science (RQF) ECITB Level 3 Certificate in Nuclear Engineering & Science (RQF) ECITB Level 3 Diploma in Nuclear Engineering & Science
More informationSTUDY ON POLYCYCLIC AROMATIC HYDROCARBONS AND POLY CHLORINATED BIPHENYLS YEARLY BASED CONCENTRATION IN WASTE OIL-SLUDGE AT MATHURA-AGRA REGION
J. Curr. Chem. Pharm. Sc.: 3(1), 2013, 16-22 ISSN 2277-2871 STUDY ON POLYCYCLIC AROMATIC HYDROCARBONS AND POLY CHLORINATED BIPHENYLS YEARLY BASED CONCENTRATION IN WASTE OIL-SLUDGE AT MATHURA-AGRA REGION
More informationI Write the reference number of the correct answer in the Answer Sheet below.
(2016) Nationality No. CHEMISTRY Name (Please print full name, underlining family name) Marks I Write the reference number of the correct answer in the Answer Sheet below. (1) Which of the atoms 1) to
More informationATOC 3500/CHEM 3152 Week 9, March 8, 2016
ATOC 3500/CHEM 3152 Week 9, March 8, 2016 Hand back Midterm Exams (average = 84) Interaction of atmospheric constituents with light Haze and Visibility Aerosol formation processes (more detail) Haze and
More informationPOINT SOURCES OF POLLUTION: LOCAL EFFECTS AND IT S CONTROL Vol. II - Contaminant Fate and Transport Process - Xi Yang and Gang Yu
CONTAMINANT FATE AND TRANSPORT PROCESS Xi Yang and Gang Yu Department of Environmental Sciences and Engineering, Tsinghua University, Beijing, P. R. China Keywords: chemical fate, physical transport, chemical
More informationPAHs in Parking Lot Sealcoats. Performance Study. Asphalt Based. Coal Tar Sealcoat Sealcoat. Sealcoat. Scrapings. Asphalt Based.
PAHs in Parking Lot s Sitelab Corporation Visit: site-lab.com USA: 978-363-99 Performance Study PAHs in Parking Lot s Page 1 of 5 There is growing concern over the use of sealcoating products used on driveways,
More informationRapid Measurements of Thermodynamic Properties for Alternative Refrigerants with Vibrating-Tube
Rapid Measurements of Thermodynamic Properties for Alternative Refrigerants with Vibrating-Tube Densimeter Fifteenth Symposium on Thermophysical Properties Y. Kano : speaker M. Hasumoto Y. Kayukawa K.
More informationDetermination of VOC in Artificial Runway by Multiple Headspace Extraction-GC/MS. Gas Chromatography/ Mass Spectrometry APPLICATION.
APPLICATION NOTE Gas Chromatography/ Mass Spectrometry Author: Kira. Yang PerkinElmer, Inc. Shanghai, China Determination of VOC in Artificial Runway by Multiple Headspace Extraction-GC/MS Introduction
More informationScope and application: For water, wastewater and seawater. Distillation is required for wastewater and seawater.
Nitrogen, Ammonia DOC316.53.01078 USEPA 1 Nessler Method 2 Method 8038 0.02 to 2.50 mg/l NH 3 N Reagent Solution Scope and application: For water, wastewater and seawater. Distillation is required for
More informationLaser induced fluorescence of polycyclic aromatic hydrocarbons: An approach to gas standards
Laser induced fluorescence of polycyclic aromatic hydrocarbons: An approach to gas standards Patricia B. C. Forbes a,b*, Andreas Trüe a and Egmont R. Rohwer b a Natural Resources and the Environment, Council
More informationSYNOPSIS OF CHANGES TO BC LABORATORY MANUAL, MARCH 2017
SYNOPSIS OF CHANGES TO BC LABORATORY MANUAL, MARCH 2017 A. INTRODUCTION The British Columbia Ministry of Environment (MOE) has updated the Laboratory Manual with new analytical methods for use under the
More informationAppNote 2/2000. Stir Bar Sorptive Extraction (SBSE) applied to En vi ron men tal Aqueous Samples INTRODUCTION
AppNote 2/2 Stir Bar Sorptive Extraction (SBSE) applied to En vi ron men tal Aqueous Samples Pat Sandra Department of Organic Chemistry, University of Gent, Krijgslaan 281 S4, B-9 Gent, Belgium Erik Baltussen
More informationanthracene Figure 1: Structures of Selected Polyaromatic Hydrocarbons (PAHs)
Stir Bar Sorptive Extraction Analysis of PAHs in Aqueous Solution: Using a polymer based technique to pre-concentrate polyaromatic hydrocarbons for analysis by GC-MS. Background: Polyaromatic hydrocarbons
More informationAppendix: Laboratory Testing Methods
Appendix: Laboratory Testing Methods A.1 Heavy Metals Testing Based on Method 200.8 (USEPA 1994), nitric and hydrochloric acid digestion was carried out to extract total recoverable heavy metals from the
More informationScreening of Pesticide Residues in Water by Sequential Stir Bar Sorptive Extraction-Thermal Desorption with GC/MS
Screening of Pesticide Residues in Water by Sequential Stir Bar Sorptive Extraction-Thermal Desorption with GC/MS Application Note Food Authors Nobuo Ochiai and Kikuo Sasamoto GERSTEL K.K. 2-13-18 Nakane
More informationHOSTOS COMMUNITY COLLEGE Natural Sciences Department Physical Sciences Unit. ENV 110/34311 Course Title: Environmental Science I Session:
HOSTOS COMMUNITY COLLEGE Natural Sciences Department Physical Sciences Unit ENV 110/34311 Course Title: Environmental Science I Session: Meets: Lecture: Room: Lab: Room: Lecture Instructor: Email: Telephone
More informationThe Use of Tandem Quadrupole GC/MS/MS for the Determination of Polycyclic Aromatics Hydrocarbons (PAHs) in Food Products
The Use of Tandem Quadrupole GC/MS/MS for the Determination of Polycyclic Aromatics Hydrocarbons (PAHs) in Food Products Bruno Veyrand, Aline Brosseaud, Philippe Marchand, Fabrice Monteau, François Andre,
More informationOKLAHOMA SUBJECT AREA TESTS (OSAT )
CERTIFICATION EXAMINATIONS FOR OKLAHOMA EDUCATORS (CEOE ) OKLAHOMA SUBJECT AREA TESTS (OSAT ) FIELD 026: MIDDLE LEVEL SCIENCE September 2008 Subarea Range of Competencies I. Foundations of Scientific Inquiry
More informationChemistry Honors Curriculum Pacing Guide
Chemistry Honors Curriculum Guide 2013-2014 Areas Unit 1 - Scientific Inquiry Unit 2 - Measurement C-1.2 C-1.4 C-1.5 C-1.6 C-1.8 Daily - 4 days A/B - 2 days Use appropriate laboratory apparatuses, technology,
More informationGraphene Plus: reusable eco-innovative sorbent for oil spills clean-up and polluted water treatment Annalisa Pola, Giulio Cesareo, Gianni Tartari +
Graphene Plus: reusable eco-innovative sorbent for oil spills clean-up and polluted water treatment Annalisa Pola, Giulio Cesareo, Gianni Tartari + Directa Plus S.p.A., Via Cavour 2, 22074 Lomazzo, (CO)
More informationGuidelines for determining polymer-water and polymer-polymer partition coefficients of organic compounds
#61 OCTOBER 017 Guidelines for determining polymer-ater and polymer-polymer partition coefficients of organic compounds ICES TECHNIQUES IN MARINE ENVIRONMENTAL SCIENCES ICES CIEM INTERNATIONAL COUNCIL
More informationAnalysis of BTEX in Natural Water with SPME
Analysis of BTEX in Natural Water with SPME Application Note Environmental Author Giordano Vassalli Sezione Protezione Aria Introduction Benzene, toluene, ethylbenzene and xylene (BTEX) isomers are monocyclic
More informationUsing Magnetic Sector GC-HRMS in a Commercial Dioxin Lab
An Executive Summary Using Magnetic Sector GC-HRMS in a Commercial Dioxin Lab David Hope Chief Executive Officer Pacific Rim Laboratories Introduction Persistent organic pollutants (POPs) are toxic chemicals
More informationChapter 13. Solution Dynamics
Chapter 13 Solution Dynamics Chapter Map Where we re headed: Separation of U, Pu, and Fission Products An organic solvent composed of 30% tributyl phosphate (TBP) in a hydrocarbon solvent, such as kerosene,
More informationACTIVATED BLEACHING CLAY FOR THE FUTURE. AndrevJ Torok ThomaE D Thomp~on Georgia Kaolin Company Elizabeth, New JerEey
PREPRINT NUMBER 71-H-22 ACTIVATED BLEACHING CLAY FOR THE FUTURE AndrevJ Torok ThomaE D Thomp~on Georgia Kaolin Company Elizabeth, New JerEey ThiE paper is to be preeented at the AIME CENTENNIAL ANNUAL
More informationAnalysis of SVOCs in Indoor Air Using Thermal Desorption GC/MS
Analysis of SVOCs in Indoor Air Using Thermal Desorption GC/MS Heidi Hayes, Stephany Mason, Diane Benton, and Garret Boone 2013 NEMC - August 8, 2013 www.airtoxics.com Outline Background SVOCs in Indoor
More informationCefic LRI s ECO19: the ChimERA project
Cefic LRI s ECO19: the ChimERA project Frederik De Laender, Karel Viaene, Colin Janssen, Hans Baveco, Melissa Morselli, Marco Scacchi, Andreas Focks, Antonio Di Guardo, Paul Van den Brink Current practice
More informationPAH Analyses with High Efficiency GC Columns: Column Selection and Best Practices
PAH Analyses with High Efficiency GC Columns: Column Selection and Best Practices Food Quality and Environmental Author Ken Lynam Agilent Technologies, Inc. 280 Centerville Road Wilmington, DE 19808 Abstract
More informationCover sheet: Title: Inhibition of free DNA degradation by the deformation of DNA exposed to trace polymeric aromatic hydrocarbon contaminants
Cover sheet: Title: Inhibition of free DNA degradation by the deformation of DNA exposed to trace polymeric aromatic hydrocarbon contaminants Authors: Fuxing Kang, Yanzheng Gao*, Wanting Ling, Qian Wang
More informationMANGA DISTRICT JOINT EVALUATION TEST 2010 Kenya Certificate of Secondary Education (K.C.S.E)
Name. School Index No.. Candidate s sign. Date. 232/1 PHYSICS Paper 1 July/August 2010 2 Hours MANGA DISTRICT JOINT EVALUATION TEST 2010 Kenya Certificate of Secondary Education (K.C.S.E) 232/1 PHYSICS
More informationExperimental Procedure Lab 402
Experimental Procedure Lab 402 Overview One set of solutions having known molar concentrations of FeNCS 2+ is prepared for a calibration curve, a plot of absorbance versus concentration. A second set of
More informationEstimating PAH Dry Deposition by Measuring Gas and Particle Phase Concentrations in Ambient Air
Chang et al., Aerosol and Air Quality Research, Vol. 3, No. 1, pp.41-51, 2003 41 Estimating PAH Dry Deposition by Measuring Gas and Particle Phase Concentrations in Ambient Air Kuan-Foo Chang 1, Guor-Cheng
More informationSPE AND GC MS INVESTIGATION OF ORGANIC CONTAMINANTS IN ATMOSPHERIC PRECIPITATION
ACTA CHROMATOGRAPHICA, NO. 17, 2006 SPE AND GC MS INVESTIGATION OF ORGANIC CONTAMINANTS IN ATMOSPHERIC PRECIPITATION M. J. Fabiańska *, U. Skręt, and W. E. Krawczyk Department of Earth Science, University
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 informationABI 3200 Q TRAP LC/MS/MS System
www.ietltd.com Proudly serving laboratories worldwide since 1979 CALL 001.847.913.0777 ABI 3200 Q TRAP LC/MS/MS System The advantages of an ion trap and the performance of a triple quad. All in one system.
More informationHach Method Spectrophotometric Measurement of Free Chlorine (Cl 2 ) in Finished Drinking Water
Hach Method 1041 Spectrophotometric Measurement of Free Chlorine (Cl ) in Finished Drinking Water Hach Company Method 1041 Revision 1. November 015 Spectrophotometric Measurement of Free Cl in Finished
More informationMulti-residue Analysis for PAHs, PCBs and OCPs on Agilent J&W FactorFour VF-Xms
Multi-residue Analysis for PAHs, PCBs and OCPs on Agilent J&W FactorFour VF-Xms Application Note Author Laura Provoost Agilent Technologies, Inc. Introduction In multi-residue analysis different groups
More informationMixing in Highly Compressible Turbulence
Mixing in Highly Compressible Turbulence Liubin Pan Evan Scannapieco School of Earth and Space Exploration Arizona State University Astrophysical motivation: Heavy elements from supernova and stellar winds
More informationPREPARATION OF ACTIVATED CARBON FROM PULP AND PAPER MILL WASTES TO BE TESTED FOR THE ADSORPTION OF VOCS
PREPARATION OF ACTIVATED CARBON FROM PULP AND PAPER MILL WASTES TO BE TESTED FOR THE ADSORPTION OF VOCS A. GREGÓRIO *, A. GARCIA-GARCIA #, D. BOAVIDA *, I. GULYURTLU * AND I. CABRITA * * Department of
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 informationAn Investigation of Precursors of Combustion Generated Soot Particles in Premixed Ethylene Flames Based on Laser-Induced Fluorescence
7 th Annual CE-CERT-SJTU Student Symposium An Investigation of Precursors of Combustion Generated Soot Particles in Premixed Ethylene Flames Based on Laser-Induced Fluorescence Chen Gu Problems of Fossil
More informationShirley E. Clark, Ph.D., P.E., D. WRE Penn State Harrisburg. Robert Pitt, Ph.D., P.E., BCEE, D. WRE University of Alabama
Shirley E. Clark, Ph.D., P.E., D. WRE Penn State Harrisburg Robert Pitt, Ph.D., P.E., BCEE, D. WRE University of Alabama Site Stormwater Characteristics and Permit Limits Analytes on Permit 90 th percentile
More informationECO24 Prediction of Non-Extractable Residues Using Structural Information ( Structural Alerts )
ECO24 Prediction of Non-Extractable Residues Using Structural Information ( Structural Alerts ) Ralph Kühne 1 Anja Miltner 2, Matthias Kästner 2, Norbert Ost 1, Andreas Schäffer 3, Gerrit Schüürmann 1,4
More informationScience Chemistry Unit 6: Atoms: Nuclear Reactions
Understandings Questions Knowledge Vocabulary Skills The physical world contains basic elements whose structure can be studied. Matter is transformed in accordance with various chemical laws and principles.
More informationKinetics and equilibrium partitioning of dissolved BTEX in PDMS and POM sheets
Environ Sci Pollut Res (2016) 23:18901 18910 DOI 10.1007/s11356-016-7098-y RESEARCH ARTICLE Kinetics and equilibrium partitioning of dissolved BTEX in PDMS and POM sheets Go-Un Nam 1 & Riza Gabriela Bonifacio
More informationPetroleum Hydrocarbons in Suspended Solids
5.2.4.2.2 Petroleum Hydrocarbons in Suspended Solids Total petroleum hydrocarbon (TPH) pollution in the suspended solids was analyzed with GC/FID and the results are shown in Figure C2.4.2.-2. FIGURE C2.4.2.-2:
More informationof Polychlorinated Biphenyls (PCBs) from Oils
JUNBA 2009 January 13, 2009 Marriott San Francisco Airport, Burlingame A Technique for Efficient i Removal and Recovery of Polychlorinated Biphenyls (PCBs) from ils Mitsuru Akashi Graduate School of Engineering,
More informationBiology Semester 1 Study Guide
Biology Semester 1 Study Guide Part 1: Scientific Investigations You are conducting an experiment to determine if increased UV radiation from the decrease in the ozone layer is killing off frog tadpoles.
More informationDisadvantage: Destructive Technique once analyzed by GC, the sample is lost
Gas Chromatography Like other methods of chromatography, a partitioning of molecules must occur between the stationary phase and the mobile phases in order to achieve separation. This is the same equilibrium
More informationStudent Exploration: Food Chain
Name: Date: Student Exploration: Food Chain Vocabulary: consumer, ecosystem, equilibrium, food chain,, predator, prey, producer Prior Knowledge Questions (Do these BEFORE using the Gizmo.) The Food Chain
More informationSupporting Information
1 Supporting Information 2 3 4 5 6 7 8 9 1 11 12 13 14 MANUSCRIPT TITLE: AUTHORS: ADDRESS: Sediment Records of Polycyclic Aromatic Hydrocarbons (PAHs) in the Continental Shelf of China: Implications for
More informationTeachers of CP Chemistry will use the following percentages for their grade books:
Curriculum and Grading Alignment for CP Chemistry Classes at Paul M. Dorman High School Teachers of CP Chemistry will use the following percentages for their grade books: Quizzes (including notebook checks)
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 informationUnilateral NMR of Activated Carbon
Unilateral NMR of Activated Carbon Stuart Brewer 2, Hans Adriaensen 1, Martin Bencsik 1, Glen McHale 1 and Martin W Smith 2 [1]: Nottingham Trent University (NTU), UK [2]: Defence Science and Technology
More information