Cover image for Mass Spectrometry for the Analysis of Pesticide Residues and Their Metabolites.
Mass Spectrometry for the Analysis of Pesticide Residues and Their Metabolites.
Title:
Mass Spectrometry for the Analysis of Pesticide Residues and Their Metabolites.
Author:
Tsipi, Despina.
ISBN:
9781119070009
Personal Author:
Edition:
1st ed.
Physical Description:
1 online resource (291 pages)
Series:
Wiley Series on Mass Spectrometry Ser.
Contents:
Title Page -- Copyright Page -- Contents -- List of Contributors -- Foreword -- Preface -- Chapter 1 Pesticide Chemistry and Risk Assessment -- 1.1 INTRODUCTION -- 1.2 PESTICIDE CHEMISTRY -- 1.2.1 Historical Perspective -- 1.2.2 Identity and Physicochemical Properties of Pesticides -- 1.2.3 Pesticide Classification -- 1.2.4 Modes of Action (MoA) -- 1.3 PESTICIDE METABOLITES AND TRANSFORMATION PRODUCTS -- 1.3.1 Biotransformation -- 1.3.2 Environmental Fate -- 1.4 RISK ASSESSMENT -- 1.4.1 Safety Factors -- 1.4.2 Ecological Risk Assessment for Pesticides -- 1.5 DIETARY EXPOSURE TO PESTICIDES -- 1.5.1 Acute Exposure or Short-Term Intake -- 1.5.2 Chronic Exposure or Long-Term Intake -- 1.5.3 Cumulative Exposure to Multiple Substances -- 1.6 PESTICIDE RESIDUES IN FOOD -- 1.6.1 Maximum Residue Limits -- 1.6.2 Residue Definition -- 1.6.3 Reporting of Results -- 1.6.4 Residue Analysis -- REFERENCES -- Chapter 2 Legislation, Monitoring, and Analytical Quality Control for Pesticide Residues -- 2.1 INTRODUCTION -- 2.2 FOOD SAFETY -- 2.2.1 CAC of Food and Agriculture Organization/World Health Organization -- 2.2.2 EU Legislation -- 2.2.3 US Food Regulations -- 2.3 WATER QUALITY -- 2.3.1 WHO -- 2.3.2 EU Water Framework Directive -- 2.3.3 US EPA Legislation -- 2.4 METHOD VALIDATION AND QUALITY CONTROL PROCEDURES FOR PESTICIDE RESIDUES ANALYSIS -- 2.4.1 CAC Guidelines -- 2.4.2 EU Guidelines: SANCO Document -- 2.4.3 FDA and EPA Guidelines -- REFERENCES -- Chapter 3 Advanced Sample Preparation Techniques for MS Analysis -- 3.1 INTRODUCTION -- 3.2 CONVENTIONAL EXTRACTION AND CLEANUP PROCEDURES -- 3.2.1 LLE -- 3.2.2 SPE -- 3.2.3 MSPD -- 3.2.4 QuEChERS -- 3.3 MICROEXTRACTION TECHNIQUES -- 3.3.1 Sorbent-Based Microextraction Techniques -- 3.3.2 Liquid-Based Microextraction Techniques -- 3.4 ALTERNATIVE EXTRACTION AND CLEANUP PROCEDURES.

3.4.1 Alternative Energy Sources to Enhance the Extraction -- 3.4.2 Coupled-Column Liquid Chromatography (LC/PC, LC/LC Techniques) -- 3.4.3 Direct Analysis in Real Time -- 3.5 CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 4 Recent Developments in Gas Chromatography-Mass Spectrometry -- 4.1 INTRODUCTION -- 4.2 ADVANCES IN GC SEPARATIONS -- 4.2.1 Multidimensional and Comprehensive Two-Dimensional Gas Chromatography -- 4.2.2 Fast GC -- 4.2.3 LPGC -- 4.3 MASS SPECTROMETRIC IONIZATION TECHNIQUES -- 4.3.1 Electron Impact Ionization (EI) -- 4.3.2 CI (Positive/Negative Modes) -- 4.3.3 Atmospheric Pressure GC-MS -- 4.4 MASS ANALYZERS INTERFACED TO GC -- 4.4.1 Quadrupole Mass Analyzer -- 4.4.2 Ion Trap Mass Analyzer -- 4.4.3 QqQ -- 4.4.4 TOF -- 4.5 MASS SPECTRAL LIBRARIES AND SOFTWARE APPROACHES IN GC-MS ANALYSIS -- 4.6. MATRIX EFFECTS IN GC-MS ANALYSIS -- 4.7 CONCLUSIONS AND PERSPECTIVES -- REFERENCES -- Chapter 5 Recent Developments in Liquid Chromatography-Mass Spectrometry: Advances in Liquid Chromatographic Separations and Ionization Techniques/Interfaces -- 5.1 INTRODUCTION -- 5.2 ADVANCES IN LIQUID CHROMATOGRAPHIC SEPARATIONS -- 5.2.1 Ultraperformance Liquid Chromatography -- 5.2.2 Hydrophilic Interaction Liquid Chromatography -- 5.3 IONIZATION TECHNIQUES/INTERFACES -- 5.3.1 Atmospheric Pressure Ionization Techniques -- 5.3.2 Direct Electron Ionization -- 5.4 AMBIENT IONIZATION TECHNIQUES -- 5.4.1 DESI, Paper Spray, and Low-Temperature Plasma Ambient Ionization -- 5.4.2 Direct Analysis in Real Time -- 5.4.3 Atmospheric Pressure Glow-Discharge Ionization -- 5.5 SUMMARY -- REFERENCES -- Chapter 6 Recent Developments in Liquid Chromatography-Mass Spectrometry: Mass Detectors -- 6.1 INTRODUCTION: MASS SPECTROMETERS -- 6.1.1 Triple Quadrupole Mass Analyzer -- 6.1.2 Quadrupole Ion Trap and Triple Quadrupole Linear Ion Trap -- 6.1.3 TOF Mass Analyzer.

6.1.4 Hybrid TOF -- 6.1.5 Orbitrap Mass Analyzer -- 6.2 COMPARISON AND COMPLEMENTARITIES OF DIFFERENT MASS ANALYZERS IN THE LC-MS ANALYSIS OF PESTICIDE RESIDUES AND THEIR METABOLITES -- 6.2.1 Dynamic Range -- 6.2.2 Scan Rate -- 6.2.3 LODs -- 6.2.4 Mass Accuracy -- 6.2.5 Resolution -- 6.2.6 Selectivity -- 6.2.7 Mass Range -- 6.2.8 Fragmentation -- 6.2.9 Identification Capabilities -- 6.2.10 Quantification -- 6.3 USE OF SOFTWARE TECHNIQUES AND SPECTRAL LIBRARIES IN LC-MS -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 7 Matrix Effects in Liquid Chromatography-Electrospray Ionization-Mass Spectrometry -- 7.1 INTRODUCTION -- 7.1.1 Some Definitions -- 7.1.2 Differences between Matrix Effects in GC and LC Methods -- 7.1.3 Differences between ESI and Other API Methods -- 7.1.4 A Typical Alarming Situation -- 7.2 DETECTION OF MATRIX EFFECTS -- 7.2.1 Calibration in Solvent versus Matrix-Matched Calibration -- 7.2.2 Postcolumn Infusion -- 7.2.3 Stable Isotope-Labeled Standards -- 7.3 REDUCTION OF MATRIX EFFECTS -- 7.3.1 Change of LC Conditions -- 7.3.2 Change of MS Conditions -- 7.3.3 Better Cleanup -- 7.3.4 Backflush of LC Columns -- 7.3.5 Dilute-and-Shoot -- 7.4 COMPENSATION OF MATRIX EFFECTS -- 7.4.1 Internal standards (IS) -- 7.4.2 Matrix-Matched Standards -- 7.4.3 Postcolumn Infusion -- 7.4.4 Standard Addition -- 7.5 AN ATTEMPT TO EXPLAIN MATRIX EFFECTS -- 7.5.1 Substance Classes Causing Matrix Effects -- 7.5.2 Tentative Mechanisms of Matrix Effects -- 7.5.3 A Recent View on the Mechanism of Ion Suppression -- REFERENCES -- Chapter 8 Liquid Chromatography-Mass Spectrometry Analysis of Pesticide Residues and Their Metabolites in Food Samples -- 8.1 INTRODUCTION -- 8.2 APPLICATION OF LC-QQQ-MS/MS FOR THE TARGETED ANALYSIS OF PESTICIDE RESIDUES AND THEIR METABOLITES IN FOOD SAMPLES -- 8.2.1 Sensitivity -- 8.2.2 Linearity -- 8.2.3 Matrix Effects.

8.3 APPLICATION OF LC-HRMS TO THE ANALYSIS OF PESTICIDE RESIDUES AND THEIR METABOLITES IN FOOD SAMPLES -- 8.3.1 Detection and Identification -- 8.3.2 Resolution -- 8.3.3 MS/MS Identification -- 8.3.4 Sensitivity -- 8.3.5 Linearity -- 8.3.6 Matrix Effect -- 8.4. DATA PROCESSING: AUTOMATED DATABASE SEARCHES -- 8.5 CONCLUSIONS AND FUTURE DEVELOPMENTS -- REFERENCES -- Chapter 9 Application of LC-MS/MS and LC-TOF-MS for the Identification of Pesticide Residues and Their Metabolites in Environmental Samples -- 9.1 INTRODUCTION AND OCCURRENCE OF PESTICIDES IN ENVIRONMENTAL SAMPLES -- 9.2 STATE-OF-THE-ART TECHNIQUES FOR THE IDENTIFICATION OF PESTICIDES AND THEIR DEGRADATION PRODUCTS -- 9.2.1 LC-MS/MS for the Analysis of Target Compounds -- 9.2.2 LC-TOF-MS and LC-QTOF-MS for the Analysis of Target and Nontarget Compounds -- 9.3 USE OF ACCURATE MASS TOOLS FOR THE IDENTIFICTION OF PESTICIDE RESIDUES AND THEIR METABOLITES IN FOOD AND WATER SAMPLES -- 9.3.1 Molecular Features -- 9.3.2 Accurate Mass Filters and Isotopic Mass Defect -- 9.3.3 Diagnostic Ion Approach -- 9.3.4 Accurate Mass Databases -- 9.3.5 Accurate Mass Profiling -- 9.4 CONCLUSIONS -- REFERENCES -- Chapter 10 Mass Spectrometric Techniques for the Determination of Pesticide Transformation Products Formed by Advanced Oxidation Processes -- 10.1 INTRODUCTION -- 10.2 SAMPLE PREPARATION -- 10.3 HYPHENATED MS TECHNIQUES -- 10.3.1 Low-Resolution Mass Spectrometry: Single-Stage Quadrupole -- 10.3.2 Identification of Pesticide TPs by GC-MS -- 10.3.3 Identification of Pesticide TPs by LC-MS -- 10.3.4 Identification of Pesticide TPs by the Combination of GC-MS and LC-MS -- 10.4 TANDEM MS -- 10.4.1 Identification of Pesticide TPs by QqQ-MS -- 10.4.2 Identification of Pesticide TPs by IT-MS -- 10.5 HRMS -- 10.5.1 Single Mass Analyzer -- 10.5.2 Hybrid HR Mass Spectrometers -- 10.6 CONCLUSIONS AND PERSPECTIVES.

REFERENCES -- Index -- Series Page -- EULA.
Abstract:
Provides an overview of the use of mass spectrometry (MS) for the analysis of pesticide residues and their metabolites. Presents state of the-art MS techniques for the identification of pesticides and their transformation products in food and environment Covers important advances in MS techniques including MS instrumentation and chromatographic separations (e.g. UPLC, HILIC, comprehensive GCxGC) and applications Illustrates the main sample preparation techniques (SPE, QuEChERS, microextraction) used in combination with MS for the analysis of pesticides Describes various established and new ionization techniques as well as the main MS platforms, software tools and mass spectral libraries.
Local Note:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
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