CHM 410/1410 Lecture 2 Environmental Sampling. Environmental sampling Two things to consider: 1.Size of the samples required 2.Number of samples required.

Slides:

Advertisements

Similar presentations

Radiochemical Methods and Data Evaluation

Advertisements

Quality is a Lousy Idea-

© WHO – PSM Quality Control Laboratory Pharmaceutical Quality, Good manufacturing Practice & Bioequivalence Kiev, Ukraine October 2005 Maija Hietava.

QA/QC Workshop ‒ Hydrocarbon Analysis Mobile, AL ‒ Jan 26, 2014 QA/QC in Organic Matter (Hydrocarbon) Analysis. Why? Millions of individual compounds with.

UNDERSTANDING ENVIRONMENTAL LABORATORY/QC REPORTS Maya Murshak – Merit Laboratories, Inc.

CHEMISTRY ANALYTICAL CHEMISTRY Fall Lecture 1.

Design Workgroup National Monitoring Network. Introduction n Overview of Progress to Date n Al Korndoerfer, Chair of Design Workgroup.

Quality in Environmental Analysis Tuesday, June 27, 2000 Goldwater Center Room 487.

Result validation. Exercise 1 You’ve done an analysis to the best of your ability using the correct procedure. Is your answer correct? possibly, hopefully.

Hillcrest Community Environmental Investigation No Conflict of Interest Geo Strata is not affiliated with and does not hold contracts with the oil & gas.

Mercury Monitoring The FDEP Laboratory Perspective Timothy W. Fitzpatrick (850)

P. 1 FAQs- before analyzing your sample. p. 2  Temperature (thermal degradable?)  Split or splitless  Split ratio  Injection volume FAQs- injection.

Interpreting Your Lab Report & Quality Control Results

QA/QC Considerations for Sampling and Analysis Associated with EPA Method 1631 Chuck Wibby Wibby Environmental Seminar on Low Level Mercury Data and Analyses.

Lecture 8. GC/MS.

Dr Samah Kotb Lecturer of Biochemistry 1 CLS 432 Dr. Samah Kotb Nasr El-deen Biochemistry Clinical practice CLS 432 Dr. Samah Kotb Nasr.

Types of experimental error

QA/QC FOR ENVIRONMENTAL MEASUREMENT Unit 4: Module 13, Lecture 2.

Laboratory requirements Dioxin Workshop, Leon Mexico Richard Turle Analysis and Air Quality Division Environmental Science and Technology Centre Environment.

Multi-Agency Radiological Laboratory Analytical Protocols Manual: MARLAP Presentation to the Radiation Advisory Committee/Science Advisory Board April.

BALZ S. KAMBER Laurentian University Ultra-high purity ICP-MS.

Quality Control In Measurements Tom Colella CLAS Goldwater Environmental Lab.

Copyright 2008 © Silliker, All Rights Reserved Interpretation of Lab Results What am I buying? What does it mean? What do I do with it?

Understanding and Implementing SWAMP Comparability: Quality Assurance SWAMP Quality Assurance Help Desk Quality Assurance Research.

WWLC Standard Operating Procedures Presented by Frank Hall, Laboratory Certification Coordinator.

Quality assurance of sampling and analytical instruments

Introduction to Analytical Chemistry

CHEMISTRY ANALYTICAL CHEMISTRY Fall

Measuring PCBs in Lake Ontario Surface Water Using Full-Scan Congener Methods Frederick Luckey U.S. Environmental Protection Agency, Region 2 Simon Litten.

Analytical chemistry MLAB 243 Level 4 Lecture time: every WED 8 -10

What is analytical chemistry? 5 subdisciplines of chemistry Some definitions In every day life… Analytical chemist versus chemical analyst.

LC-MS/MS Analysis of Naphthenic Acids in Environmental Waters Coreen Hamilton, Million B. Woudneh & Guanghui Wang Presented at Workshop on Analytical Strategies.

Introduction to Analytical Chemistry Dr M. Abd-Elhakeem Faculty of Biotechnology General Chemistry Lecture 7.

Quality WHAT IS QUALITY

Bias and Errors. Some Terms Used to Describe Analytical Methods Accuracy Precision LOD RDL LOQ Selectivity Sensitivity Linearity Ruggedness.

Ultra-Trace PCB Sampling

Introduction The past, the present and the future.

New York City Department of Environmental Protection Bureau of Water Supply Water Quality New York City Department of Environmental Protection Bureau of.

All Rights Reserved AEIC Response Concentration 5% CV 20% CV Error bars for concentrations determined by the.

Lecture 1 – What is Analytical Chemistry? & What is the Analytical Method?

Koch, M.: Control Charts© Springer-Verlag Berlin Heidelberg 2003 In: Wenclawiak, Koch, Hadjicostas (eds.) Quality Assurance in Analytical Chemistry – Training.

ME551/GEO551 Introduction to Geology of Industrial Minerals Spring 2005 SAMPLING.

Quality Assurance How do you know your results are correct? How confident are you?

CALIBRATION METHODS. For many analytical techniques, we need to evaluate the response of the unknown sample against the responses of a set of standards.

Pharmaceuticals, Hormones, and Other Wastewater Contaminants in U.S. Streams Herb Buxton Coordinator, Toxic Substances Hydrology Program.

Biochemistry Clinical practice CLS 432 Dr. Samah Kotb Lecturer of Biochemistry 2015 Introduction to Quality Control.

Genomic Analysis of Wetland Sediment as a Tool for Avian Influenza Virus Surveillance in Wild Waterfowl Chelsea Himsworth DVM, MVetSc, PhD, Dipl ACVP Leader,

More efficient paper device using PNIPAM 김영완 장욱일 장수영 이원진.

Concentration Units Molarity Molarity Formality: Formality: Normality Normality What is the molarity of a 6N H 2 SO 4 solution? What is the molarity of.

Data Quality Assurance/ Quality Control. QA/QC Requirements for RECAP Submittals Data generated using rigorous analytical methods Data must be analyte.

Chapter 1: Introduction Analytical Chemistry Analytical Chemistry Qualitative analysis Qualitative analysis Quantitative analysis Quantitative analysis.

LECTURE 13 QUALITY ASSURANCE METHOD VALIDATION

Primary Standards Is a highly purified compound that serves as a reference material in all volumetric and titrimetric methods. It must be: –1) Highly pure,

CHM 410/1410. CHM 410/1410 Objectives: 1.Think like an analytical chemist 2.Avoid the ‘Black Box’ syndrome when using instrumentation 3.Learn.

Art PowerPoints Harris: Quantitative Chemical Analysis, Eight Edition CHAPTER 05: QUALITY ASSURANCE AND CALIBRATION METHODS.

Quality is a Lousy Idea-

Clean Water Act Methods Overview of EPA’s CWA Method Activities

DOE Consolidated Audit Program

EPA Method Equivalency

Strategies for Eliminating Interferences in Optical Emission Spectroscopy Best practices to optimize your method and correct for interferences to produce.

Concentration Units Molarity Formality: Normality

CHM 410/1410 Lecture 3.

ASTSWMO Annual Meeting

Quality is a Lousy Idea-

EPA Method Equivalency

Director of Quality Assurance

ME551/GEO551 Introduction to Geology of Industrial Minerals Spring 2007 SAMPLING.

Effective Measurement and Monitoring of Total Petroleum Hydrocarbons with Field Equipment Patrick Tyczynski M-I SWACO, a Schlumberger company.

© Copyright 2017 EISC, All rights reserved

Quality assessment of the monitoring database on priority substances

Presentation transcript:

CHM 410/1410 Lecture 2 Environmental Sampling

Environmental sampling Two things to consider: 1.Size of the samples required 2.Number of samples required Size is determined by detection limits -Do you mind non-detects? -Government monitoring programs vs. research into contaminant disposition

Environmental sampling Two things to consider: 1.Size of the samples required 2.Number of samples required Size is determined by detection limits -Do you mind non-detects? -Government monitoring programs vs. research into contaminant disposition Number is determined by spatial resolution required -Trying to see differences? -How well characterized does the situation have to be? Use these principles to design a sampling protocol

Quality Control (QC) Contamination – an analytical chemist’s worst enemy Need to control and understand contamination at all steps: Find Contamination – work backwards to identify the source Field blanks SamplingExtractionAnalysis Extraction blanksInstrumental blanks Once source is identified, make changes to reduce contamination -Change sampling technique or container -New extraction reagents or location or technique -Clean instrument

Quality Control (QC) Extraction efficiency – need to understand loss of material during extraction This is done using a Spike and Recovery experiment “Clean” Matrix Add chemical of interest “Spike” ExtractionConc in extract Conc in spike X 100 = Extraction efficiency Extract5 6 X 100 = 83%

What if you can’t find a “clean” matrix?