2022 Technical Program

The theme of the 2022 conference was "Where Do We Go From Here?". It featured over 175 presentations and posters organized into technical sessions from August 1-5, 2022.

The Forum on Environmental Accreditation

The Forum on Environmental Accreditation (the Forum) held concurrently with NEMC, is the principal conference for addressing policy and technical issues affecting the accreditation of environmental laboratories in addition to field sampling and measurement organizations. The Forum features open public meetings of all TNI committees to allow quality professionals, chemists, analysts, microbiologists, engineers, and managers from federal and state agencies; commercial, municipal, state and federal laboratories; and many others who are actively involved and interested in laboratory accreditation issues to review what has been done and participate in the efforts to establish a national program for environmental laboratories and field sampling and measurement organizations. Details for the Forum meetings can be found at www.nelac-institute.org.

 


Drinking Water
Session Chair(s): Ken Rosnack (Waters) and Yongtao (Bruce) Li (Eurofins)
Addressing Drinking Water in Oregon: A look at monitoring efforts for cyanotoxins, volatile organic compounds and PFAS
Lori Pillsbury, Oregon Department of Environmental Quality Laboratory
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Cyanobacterial Toxins in Recreational Waters Using a Targeted UPLC/MS/MS Method and Comparison to Metagenomics
Stuart Oehrle, Waters Field Lab-Northern Kentucky University
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High Throughput Automated Solid Phase Extraction of UCMR5 PFAS Compounds
Ian Wan, PromoChrom Technologies
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Modified EPA Method 533 for Analysis of PFAS in Drinking Water and Source Water
Yongtao Li, Eurofins Eaton Analytical, LLC
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PFAS National Drinking Water Assessment Monitoring: UCMR3 and UCMR5 Comparison
Yongtao Li, Eurofins Eaton Analytical, LLC
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Quantitation of Microcystins and Nodularin in Drinking Water Samples to Meet EPA Method 544 Requirements Using Qsight LC/MS/MS
Mollie Cyr, PerkinElmer
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EPA Program Updates
Session Chair(s): Lara Phelps, USEPA CEMM
EPA Clean Water Act (CWA) Methods Activities
Adrian Hanley, US EPA Office of Water
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Overview and Updates of the Federal Drinking Water Program
Jennifer Best, U.S. Environmental Protection Agency
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SW-846 Methods 2022 Updates
Troy Strock, U.S. Environmental Protection Agency
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Upcoming Activities of SW-846 Methods – The Next Frontier Towards Waste Characterization
Sandip Chattopadhyay, U.S. Environmental Protection Agency
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Lunch On Your Own


Metals Analysis and Remediation
Session Chair(s): Zikri Arslan (US Geological Survey) and Siqi Sun (Analytik-Jena)
Automated Ultra-high Dilutions (>10,000x) to Extend the Applicability of ICPMS to Highly Concentrated Samples
Michael Manhart, Elemental Scientific
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Hydrofluoric Acid-Assisted Dissolution of Biological Samples for Silicon Determination by ICP-MS: Examining Silicon Volatility Under HF Digestions
Zikri Arslan, US Geological Survey
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Improving Data Quality in the Analysis of Metals and Metal Species - A Better Path Forward
Ben Wozniak, Brooks Applied Labs
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Opening Reception and Exhibition


Operational Issues Impacting the Environmental Laboratory Industry
Session Chair(s): Stacie Crandall (HRSD) and Judy Morgan (Pace Analytical)
A Novel EI Source Optimized for Use with Hydrogen Carrier Gas in GC/MS and GC/MS/MS
Angela Smith Henry, Agilent Technologies
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Automation of Inorganic Assays with Flow Injection Analysis (FIA)
Ilkka Lahdesmaki, FIAlab Instruments
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Technical Mentoring – Preparing the Next Generation
Mark Bruce, Eurofins Environment Testing America
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Operational Issues Impacting the Environmental Laboratory Industry (Session 2)
Session Chair(s): Stacie Crandall (HRSD) and Judy Morgan (Pace Analytical)
Breaking Through the EPH Fractionation Bottleneck with Automation and Multiple Cartridge Formats
Michael Ebitson, Biotage
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Can Reducing Analytical Cycle Time by Only 1 Minute Increase Revenue by $100,000 or More? Yes!
Richard Clinkscales, Thermo Fisher Scientific
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Cut Down Your Column Cuts: Matching GC Liner Style to Matrices and Reduce Column Trimming Headaches
Angela Smith Henry, Agilent Technologies
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Faster, Greener and More Productive: EPA Method 8260
Lee Marotta, PerkinElmer
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Improved Anions Analysis – Impact of Newer Technologies in Older Contaminants.
Quoc-Huy Ho, Shimadzu Scientific Instruments
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Lessons Learned from a PFAS-Stress Test of LCMS Instruments
Ruth Marfil-Vega, Shimadzu Scientific Instruments
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Reduced Sample Volumes to Increase Sample Throughput for US EPA Method 1664B
Michael Ebitson, Biotage
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Polyfluoroalkyl Substances (PFAS) in the Environment
Session Chair(s): Charles Neslund (Eurofins-Lancaster Laboratories Environmental) and Mike Chang (Restek Corp.)
A Holding Time Evaluation of the Stability of "Forever Chemicals" in Wastewater
Charles Neslund, Eurofins Lancaster Laboratories Environment Testing
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An Exploration of Sample Prep Techniques for Non-Targeted Analysis of PFAS Using Combustion Ion Chromatography
Jay Gandhi, Metrohm USA
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Automated Extraction Method of PFAS From Different Environmental Matrices
Alicia Stell, CEM Corporation
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Automating the Solid Phase Extraction of PFAS for a Range of Methods and Matrices
Ian Wan, PromoChrom Technologies Ltd
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Comparing Extraction Protocols, Analytical Requirements and Results from Methods Utilized to Test for PFAS in Aqueous Samples: EPA 537.1, EPA 533, ISO 21675
Evan Walters, Biotage, LLC
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Determination of Extractable Organically Bound Fluorine (EOF) in Surface Water With Molecular Absorption Spectrometry
Siqi Sun, Analytik Jena
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Establishing the Updated US EPA 537.1 for PFAS Reliably in a Lab by Automated Sample Preparation with the Combination of XANA and D-EVA
Uwe Aulwurm, LCTech GmbH
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Evaluation of a New Polymeric Weak Anion Exchange Solid Phase Extraction Sorbent for PFAS
Matthew Giardina, Agilent Technologies
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TNI: Assessment Forum - Internal Audits: Bringing Together Assessor Expectations and Perspectives
Session Chair(s): Judy Morgan, Pace Analytical

Assessing effectiveness of the internal audit schedule and SOP review process relative to requirements of the standard
Kristin Brown, Utah DOH
Best Practices on how to effectively meet internal audit requirements
Mitzi Miller, Miller Quality Consulting
SOP Review: Anticipating the Blind Spots
Aaren Alger, Alger Consulting and Technology

TNI: Proficiency Testing Program Executive Committee
Session Chair(s): Fred Anderson, Advanced Analytical Solutions


Best Management Practices for Environmental Laboratories
Session Chair(s): Andrea Teal (Eurofins) and Elizabeth Turner (Pace Analytical)
Don't Risk it All: How to Tackle Risk in Your Quality Management System
Nicholas Slawson, A2LA
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Finding and Dealing with Improper Laboratory Practices
Charles Newton, NV5 Dade Moeller and Associates
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Guidelines on Validation of Non-Regulatory Chemical and Radiochemical Methods
Anand Mudambi, US Environmental Protection Agency
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Signs of a Well-Managed Laboratory From an Assessors Viewpoint
Mitzi Miller, MQC, LLC
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Environmental Monitoring Coalition (EMC)
Session Chair(s): Jerry Parr


Innovative New Technology Showcase


Keynote Speaker
Strategies to Prepare for an Aging Workforce
Fiona Middleton, Eurofins Environment Testing America
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Laboratory Informatics
Session Chair(s): Robert Benz (Horizon Lab Systems LLC)
Arming Yourself with the Tools and Knowledge for a Successful LIMS Implementation
Bill Pingpank, Ethosoft, Inc.
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How to Select the Correct LIMS for Your Laboratory. A Consultant’s Guide to the ABCs.
Eddie Clemons II, PQC-S
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Interfacing Remote Clean Water Act Monitoring of Environmental Compliance Instruments with Informatics Platforms with Quality Control Challenge Points
Edward Askew, Askew Scientific Consulting
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Micro ELN, an Innovative Data Management System for Automated Microbiological Analysis for Wastewater Treatment Plants
Devon Morgan, CCWRD
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Using a LIMS to Streamline Your Quality Management System (QMS)
Stephen D. Wesson, Accelerated Technology Laboratories
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Lunch Provided


New Organic Monitoring Techniques
Session Chair(s): Charlie Appleby (Retired) and Richard Jack (Phenomenex)
A New ASTM Method for the Determination of Nitrosamines in Water by Direct Injection LC-MS/MS
William Lipps, Shimadzu
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Improving Discovery of Volatile Per- and Polyfluoroalkyl Substances (PFAS) in Landfill Gas
Rachael Szafnauer, Markes International GmbH
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Recent Advances in Sample Preparation of POPs by a New Accelerated Solvent Extraction Technology
Chris Shevlin, Thermo Fisher Scientific
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What’s That Smell? Trace-Level Analysis of Odorants in Water Using High-Capacity Sorptive Extraction
Robert Harrington, Aquaculture Research Institute
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Workflows Optimized for High Throughput, Robust Persistent Organic Pollutants (POPs) Analysis in Environmental Matrices
Ruud Addink, Fluid Management Systems
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The 2022 Charlie Carter Award: Making a Difference


TNI: Laboratory Accreditation Body Committee
Session Chair(s): Aaren Alger, Alger Consulting and Technology


TNI: Mentor Session - Internal Audits: Bringing Together Assessor Expectations and Perspectives
Session Chair(s): Dorothy Love, Eurofins Lancaster Environmental


TNI: Quality Management Systems Expert Committee
Session Chair(s): Debbie Bond, Alabama Power


TNI: Quality Management Systems Expert Committee (continued)
Session Chair(s): Debbie Bond, Alabama Power


Wastewater Surveillance - State of the Science and Its Uses for Monitoring Public Health
Session Chair(s): Patsy Root (IDEXX) and Sharon Mertens (Milwaukee Metropolitan Sewerage District)
COVID-19 Wastewater Surveillance: Scalable Solutions for Detection in Low to High Throughput Workflows
Cynthia Ripoll, MACHEREY-NAGEL
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Implementing New ACIL Guidance for Wastewater Surveillance for SARS-CoV-2
Jeff Bates, IDEXX
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In-Situ Microbiology Instrumentation for Recreational, Agricultural, Wastewater and Stormwater Measurements
Joyce Wong, Fluidion US Inc.
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Wastewater Surveillance Using ddPCR Reveals Highly Accurate Tracking of Omicron Variant Due to Altered N1 Probe Binding Efficiency
Melissa Schussman, Department of Civil and Envionmental Engineering, School of Freshwater Sciences, University of Wisconsin-Milwaukee
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Collaborative Efforts to Improve Environmental Monitoring
Session Chair(s): Lem Walker (USEPA) and William Lipps (Shimadzu Scientific Instruments)
Advances of Official Methods for PFAS Analysis Using SPE and HPLC-MS/MS
Achim Leitzke, MACHEREEY-NAGEL
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Efforts of the Environmental Monitoring Coalition to Improve Data Quality
Jerry Parr, The NELAC Institute
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Light Gas Analysis – From Concerns to Solutions
Dave Gratson, Environmental Standards Inc.
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One Curve Fit to Rule Them All
Richard Burrows, Retired
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The First Rule of Isotope Dilution Club is that We Do Talk about Isotope Dilution Club
Harry McCarty, General Dynamics Information Technology
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Updates to Standard Methods for the Examination of Water and Wastewater in Preparation of Publication of the 24th Edition and Then Beyond.
William Lipps, Shimadzu
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Drinking Water (Session 2)
Session Chair(s): Ken Rosnack (Waters) and Yongtao (Bruce) Li (Eurofins)
1,4-Dioxane in Drinking Water: Increasing Sensitivity for Trace-Level Analysis
Rachael Szafnauer, Markes International GmbH
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Combining the Power of Mass Spectrometry with Ion Chromatography through a Single Software Solution
Jayesh Gandhi, Metrohm USA
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Haloacetic Acids Analysis –Evaluation of Alternatives for Their Improved Analysis.
Ruth Marfil-Vega, Shimadzu Scientific Instruments
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Highly Sensitive Detection of Geosmin and MIB by Purge and Trap (P&T) with Gas Chromatography/Mass Spectrometry (GC/MS)
Stephanie Smith, Xylem Lab Solutions
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Innovative and Sensitive Method for Determination for 1,4 Dioxane by HS-GC/MS
Miles Snow, Perkin Elmer
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Lunch On Your Own or Attend a Sponsored Luncheon Seminar


Plenary Session - Where Do We Go From Here
Advancing Environmental Justice with New Measurements Methods
Phillip Fine, Deputy Associate Administrator, EPA Office of Policy
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Environmental Justice, Risk and Innovation
Louie Rivers, USEPA ORD
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EPA Priorities from the Infrastructure and Jobs Act
Zealan Hoover, Senior Advisor to the EPA Administration for Infrastructure
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EPA’s Strategy for Addressing PFAS in Water, Air, and Land
Susan Burden, Ph.D., PFAS Executive Lead for EPA’s Office of Research and Development (ORD)
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TNI: Chemistry Expert Committee
Session Chair(s): Michelle Wade, A2LA Workplace Training


TNI: Microbiology Committee
Session Chair(s): Cody Danielson, Oklahoma DEQ


TNI: Proficiency Testing Expert Committee
Session Chair(s): Kirstin Daigle, Pace Analytical


TNI: Special Session on Analyte/Method Codes and Proficiency Testing
Session Chair(s): Jerry Parr, The NELAC Institute


Air Monitoring, Methods, and Technology
Session Chair(s): Jason Herrington and Jason Hoisington (Restek)
Advanced Instrumentation in Air Monitoring to Achieve Low-Level Detection
Blake Ericson, Montrose Environmental Group
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Ambient and Indoor Air Sampling for Per- and Poly-Fluorinated Alkyl Substances (PFAS)
Jason Hoisington, Restek
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CARB 436: A Cautionary Tale of Methods, Math, and Miscalculations.
Sheri Heldstab, Retired
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Has the Helium Bubble Burst? Using Hydrogen Carrier Gas with Multi-Gas Enabled Thermal Desorption and a Novel EI Source for TD-GC-MS Analysis of Standard Ambient Air Monitoring Methods
Angela Smith- Henry, Agilent Technologies
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Innovative, Cryogen-Free, Ambient Air Monitoring in Compliance with US EPA Method TO-15a
Ericka Hachmeister, Markes International Ltd
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Rapid Greenhouse Gas Analysis
Allison Mason, Shimadzu Scientific Instruments
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The Importance of Sanitary Sewers as the Expected Preferential Pathway in Vapor Intrusion Evaluations
Craig Cox, Cox-Colvin & Associates, Inc.
Volatile Organic Compound and Ozone Measurements at Carlsbad Caverns National Park: Impacts of Oil and Natural Gas Operation Emissions on Park Air Quality
Barkley Sive, National Park Service
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Collaborative Efforts to Improve Environmental Monitoring (Session 2)
Session Chair(s): Lem Walker (USEPA) and William Lipps (Shimadzu Scientific Instruments)
Apply US-EPA Wastewater ATP Guideline to Validate Modified Colitag for Enumeration of E.Coli and Fecal Coliform Bacteria
Preetha Biswas, Neogen Corporation
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Assessment of an Automated E. coli and Fecal Coliform Monitoring System by Comparison with Reference Methods Using the US-EPA ATP Protocol
R. Stephen Brown, Queen's University
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Building Stakeholder Relationships to Facilitate Expanded Application of Non-Targeted Analysis Methods
Ruth Marfil-Vega, Shimadzu Scientific Instruments
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Determining the Procedures That Online and Remote Instruments Must Meet to Confirm Compliance with 40 CFR Part 136 Quality Control
Edward Askew, Askew Scientific Consulting
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Development of ISO Standards for the Determination of Ammonia, Nitrate and Total Nitrogen Using Tube Tests
Christian Prokisch, MACHEREY-NAGEL
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Updates on SW-846 Test Method 3050C - Acid Digestion of Inorganics Found in Sediment, Sludges, and Soils
Sandip Chattopadhyay, U.S. Environmental Protection Agency
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Conference Planning
Session Chair(s): Jerry Parr, The NELAC Institute


Instrumentation Focus: Reducing Interferences in ICP/MS
Session Chair(s): Mark Bruce (Eurofins)
Can the Need for ½ Mass Corrections for Double-Charged Interferences in Methods 200.8 and 6020 Be Eliminated Using a Multi-Quad ICP-MS?
Ruth Wolf, Perkin Elmer
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How to Overcome Unexpected Interferences and Accelerate Environmental Analysis Using ICP-MS
Weimin Yang, ThermoFisher Scientific
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Interference Removal/Mitigation Utilizing ICP-MS/MS and Single Unit Mass Resolution Technology
Craig Jones, Agilent Technologies, Inc.
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Optimization of Interference Reduction in ICPMS Using Collision Cell Technology
Richard Burrows, N/A
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Revising ASTM D5673 Standard Test Method for Elements in Water by Inductively Coupled Plasma—Mass Spectrometry to Include Interference Removal Technology and a Few Extra Metals for Grins
William Lipps, Shimadzu
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Keynote Speaker
Environmental Sustainability
Andre Argenton, Dow Chemical
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Lunch Provided


New Organic Monitoring Techniques (Session 2)
Session Chair(s): Charlie Appleby (Retired) and Richard Jack (Phenomenex)
Analysis of Multiple Matrices with a Single Calibration Curve for Polycyclic Aromatic Hydrocarbons (PAHs) with GC-MS Following the EPA 8270E
Andy Fornadel, Thermo Scientific
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Analysis of PCBs in Environmental Matrices Using Triple Quadrupole GC-MS/MS
Andy Fornadel, Thermo Scientific
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Comprehensive and Robust Analysis of Environmental Semivolatile Organic Compounds Using GC-MS/MS
Rachael Ciotti, Agilent Technologies
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Development of Methods and Comparative Analysis of Opiates by UPLC-MSMS and GC-TOF
James Garcia, CSS Inc
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Gas Chromatography Atmospheric Pressure Chemical Ionization (GC-APCI) GC/MS/MS for the Determination of Semivolatiles
Douglas Stevens, Waters Corporation
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Is This the Next Emerging Contaminant of Concern? Analysis of Tire-Degradant 6PPD Quinone in Surface & Drinking Waters
Tarun Anumol, Agilent
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Nontarget and Suspect Screening Analysis of Samples Containing Compounds Derived from Tire Rubber
Karl Oetjen, SCIEX
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Retain Your Spectral Fidelity: Using H2 Carrier Gas and a Novel EI Source for EPA 8270 With GC/MS and GC-MS/MS Systems
Angela Smith Henry, Agilent Technologies Inc.
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Polyfluoroalkyl Substances (PFAS) in the Environment (Session 2)
Session Chair(s): Charles Neslund (Eurofins-Lancaster Laboratories Environmental) and Mike Chang (Restek Corp.)
A Strategy for Ultra Low-Level Detection and Quantification of Short- and Long- Chain Per- and Polyfluoroalkyl Substances (PFAS) by Direct Injection LC-MS/MS
Ed George, Thermo Fisher Scientific
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Analysis of PFAS Compounds in Indoor Air using Thermal Desorption GC-MS Part 3: Improvements for High Volume Sampling and Preconcentration of Volatile PFAS Species
Kurt Thaxton, GERSTEL GmbH
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EPA Draft Method 1633 for PFAS Analysis: Evaluation of SPE Extraction Options
Heather Lord, Bureau Veritas
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Evaluation of SW-846 EPA 8327: Per-and Polyfluoroalkyl Substances (PFAS) Multi-Laboratory Validation Data By Recovery Correction and Approximate Isotope Dilution Recalculation
Troy Strock, US EPA
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The Analysis for PFAS: An Evaluation of Current Methods, Proposed Methodologies and the Application of New Technologies
Charles Neslund, Eurofins Lancaster Laboratories Environment Testing
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Ultimate Sensitivity for the Detection of Per- and Polyfluorinated Alkyl Substances in Environmental Water Samples
Kari Organtini, Waters Corporation
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Use of Electron Activated Dissociation (EAD) On the ZenoTOF 7600 System to Elucidate PFAS Structures
Craig Butt, SCIEX
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Volatile PFAS in Air: Developing Methods for Targeted Analysis and Discovery of Non-Target Volatile PFAS
Jan Peter Mayser, Markes International GmbH
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TNI Committee Reports
Session Chair(s): Alfredo Sotomayer, Milwaukee Metropolitan Sewerage District


TNI: Laboratory Accreditation System Executive Committee
Session Chair(s): Maria Friedman, California ELAP


TNI: NELAP Accreditation Council
Session Chair(s): Kristin Brown, Utah DOH


TNI: Training Committee
Session Chair(s): Calista Daigle, Pace Analytical


Analyzing Microplastics in the Environment
Session Chair(s): Tarun Anumol (Agilent) and Shelly M. Walther (Los Angeles County Sanitation Districts)
A New ASTM Method for Determination of Microplastic Particle Distribution, Size, Concentration, and Shape in Wastewater Samples Using a Dynamic Imaging Analyzer
William Lipps, Shimadzu
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Automated PY-GCMS Workflow for the Qualitative and Quantitative Analysis of Plastics of Diverse Sizes in Environmental Samples.
Alan Owens, Shimadzu Scientific Instruments
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Identification of Microplastics in Water by Pyrolysis Gas Chromatography Mass Spectrometry
Kurt Thaxton, GERSTEL GmbH
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New Insights from TD-GC-MS Data on Microplastics in Salt Samples
Jan Peter Mayser, Markes International GmbH
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Community Based Monitoring & the Role of Citizen Science
Session Chair(s): Leon Vinci (Health Promotion Consultants) and Mike Pascucilla (East Shore District Health Dept)
Climate Impacts, Water Quality and Citizen Science in Coastal Southern Connecticut: A Review of Factors Supporting Practical Public Health Engagement
Michael Pascucilla, East Shore District Health Department
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From Dashboard to the Bay
Marcos Pena, GreenPlanet Waterways Restorations Inc.
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Going On From Here: Citizen Science, Community Science, and/or Local Research ?
Leon Vinci, Health Promotion Consultants
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Grass Roots Perspective on The Chesapeake Bay Oyster Reef Recovery Initiative
Cherie Santos-Wuest, Volunteer
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Keynote Speaker
Simple, Smart, Sustainable – Preparing Your Environmental Lab for the Future
Suneet Chadha, Perkin Elmer
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Optional Training Course: Understanding Microbiology Training Series, Part 1: Introduction to Microbiological Testing
Session Chair(s): Cody Danielson, Oklahoma DEQ


Shale Oil & Gas
Session Chair(s): Kesavalu Bagawondoss (SGS) and Dave Gratson (Environmental Standards)
An Improved Rapid Dissolved Gas Analysis
Ian Shaffer, Shimadzu Scientific Instruments
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Analysis of Trace Water in Liquefied Petroleum Gas
Allison Mason, Shimadzu Scientific Instruments
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Difficulties with Accurately Quantifying Radionuclide Activities in Oil and Gas Wastewater Utilizing Current Methodology
Mark McNeal, ACZ Laboratories, Inc.
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Stone Soup
Ryan Hall, NGL Energy Partners
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Advances in High Resolution Mass Spectrometry and Its Emerging Environmental Applications
A Consolidated Approach for Routine Analysis of Soil Contaminants Using GC-Orbitrap Mass Spectrometry
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Analyzing Microplastics in the Environment
Detection of Microplastics in Consumer Products with Single-Particle ICP-MS
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Evaluation of Bioplastics Analysis by Pyrolysis-GC/MS
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Collaborative Efforts to Improve Environmental Monitoring
Pesticide Quantitation with LC/MS/MS and GC/MS for 419 Compounds
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Community Based Monitoring & the Role of Citizen Science
Climate Impacts, Water Quality and Citizen Science in Coastal Southern Connecticut: A Review of Factors Supporting Practical Public Health Engagement-Poster
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Drinking Water
Determination of Trace Level Lead (Pb) in Drinking Water Using Mercury Free Electrode and Portable Instrument According to Requirement of USEPA Lead and Copper Rule
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Extending the Quantitative Performance for Haloacetic Acids, Bromate, and Dalapon in Water Using an IC-MS/MS Workflow
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IC-MS Analysis of Perchlorate, Bromate, and Bromide in Drinking Water
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Instrumentation Focus: Reducing Interferences in ICP/MS
Direct Analysis of Trace Elements in Seawater Using ICP-MS with Versatile Reaction Modes
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Overcoming Interferences in Challenging Sample Matrices Using ICP-OES
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Metals Analysis and Remediation
Analysis of Desalination Discharge Brines by ICP-OES
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Characterization of Mercury Species Using HPLC-ICP-MS
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Characterization of Tin Species Using HPLC-ICP-MS
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New Organic Monitoring Techniques
Analysis of 6-PPD-Quinone in Environmental Waters.
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Streamlined Polychlorinated Biphenyls Analysis Using Multiple Solvent Wash and Automated Injection of Internal Standards
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Validation of Method EPA625.1 and EPA608.3 Using Semi-Automated SPE
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Polyfluoroalkyl Substances (PFAS) in the Environment
Analysis of Per-and Polyfluoroalkyl Substances (PFASs) in Aqueous, Solid, Biosolids, and Tissue Samples Using Weak-Anion Exchange SPE and LC-MS/MS Analysis According to EPA Method 1633
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Analysis of PFAS Extractables in Millex® Syringe Filters Using LC/MS/MS
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Column Chemistry Considerations Affecting PFAS Selectivity for LC-MS/MS Workflows
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Comparison of PFAS Recoveries Between WAX/GCB vs. Dispersive GCB SPE Cartridge Formats
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Detection of Per- and Polyfluorinated Substances (PFAS) in Drinking Water Following EPA 533
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Reference Materials for Per- and Polyfluoroalkyl Substances (PFAS)
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Simultaneous Quantification and Screening of Per- and Polyfluoroalkyl Substances Using High Resolution Mass Spectrometry
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Use of Graphitized Carbon Black for Matrix Cleanup in the Analysis of Per- and Poly-fluoroalkyl Substances
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Validation Studies of EPA Method 537.1 for Monitoring Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) in Drinking Water Using UHPLC with a Triple Quadrupole Mass Spectrometry
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