Analytical Methods for Environmental Contaminants of Emerging Concern

Analytical Methods for Environmental Contaminants of Emerging Concern
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Analytical Methods for Environmental Contaminants of Emerging Concern Provides the analytical methodology required to detect different families of organic compounds of emerging concern (CECs) from environmental samples Most contaminants of emerging concern (CECs) —such as pharmaceuticals, personal care products, pesticides, sunscreens, perfluorinated compounds, and microplastics—have been present in the environment for years, yet some have only recently been identified, and many of these organic compounds remain unregulated. Analytical methods have been developed to determine the toxicity and risk of different families of CECs. Analytical Methods for Environmental Contaminants of Emerging Concern presents the methods currently available to determine families of organic CECs in environmental samples. Each section of the book is devoted to a particular family of CECs, covering different analytical methods supported by examples of both cutting-edge research and commonly used methods. An international panel of experts describes every step of the analytical procedures, including sample preparation, chromatographic separation coupled to mass spectrometry or other instrumental techniques. Specific requirements are linked to the properties of the contaminants and the sample matrix for each procedure presented. Throughout the book, in-depth case studies of analytical procedures for CEC extraction, separation, and determination are presented to help readers transfer the analytical methods to their laboratories. Provides detailed descriptions of various approaches for determining each group of CECs in environmental samples Covers different types of aqueous, solid, and atmospheric samples Includes up-to-date information on CEC properties, relevant legislation, reported or potential metabolites/transformation products, and environmental occurrence Addresses CECs such as novel psychoactive substances, artificial sweeteners, musk fragrances, disinfection byproducts, and microplastics Offers practical tips and advice on special care procedures to assist readers in CEC determination Analytical Methods for Environmental Contaminants of Emerging Concern is an essential reference and guide for advanced students and researchers in analytical chemistry and science, environmental science, forensic science, and specialized subjects related to analytical chemistry.

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Группа авторов. Analytical Methods for Environmental Contaminants of Emerging Concern

Analytical Methods for Environmental Contaminants of Emerging Concern

Contents

List of Illustrations

List of Tables

Guide

Pages

Contributors

Preface

1 Pesticides

1.1 Overview of Pesticides

1.1.1 Properties

1.1.2 Legislation

1.1.3 Reported or Potential Metabolites and/or Transformation Products

1.1.4 Occurrence in the Environment

1.2 Sample Preparation and Collection

1.2.1 Protocols for Collecting and Preparing Samples

1.2.2 Sample Extraction and Clean-up

1.3 Determination of Pesticides

1.3.1 Development of the Instrumental Method. 1.3.1.1 Chromatography

1.3.1.2 Detection

1.3.2 Figures of Merit

1.3.3 Hints and Tips

1.4 Future Directions and Challenges

Acknowledgments

Bibliography

2 Pharmaceuticals

2.1 Overview of Pharmaceuticals. 2.1.1 Properties

2.1.2 Reported or Potential Metabolites and/or Transformation Products

2.1.3 Occurrence

2.1.4 Legislation

2.2 Sampling and Sample Preparation

2.2.1 Solid Samples

2.2.2 Water Samples

2.3 Analytical Techniques for the Determination of Pharmaceuticals. 2.3.1 Gas Chromatography and Gas Chromatography Coupled to Mass Spectrometry

2.3.2 Liquid Chromatography and Liquid Chromatography Coupled to Mass Spectrometry

2.4 Conclusion and Future Trends

References

3 Personal Care Products

3.1 Overview of Personal Care Products

3.1.1 Properties

3.1.2 Legislation

3.1.3 Transformation Products

3.1.4 Occurrence in the Environment

3.2 Sample Preparation for PCPs in the Aquatic Environment

3.2.1 Sorbent-based Methodologies. 3.2.1.1 Solid-phase Extraction

3.2.1.1.1 New Sorbent Materials and Approaches for SPE

3.2.1.1.2 Magnetic Solid-phase Extraction

3.2.1.1.3 Molecularly Imprinted Solid-phase Extraction

3.2.1.2 Fabric Phase Sorptive Extraction

3.2.1.3 Stir-bar Sorptive Extraction

3.2.1.3.1 Miniaturized SBSE Approaches: SBDLME, SBSDME, BAµE

3.2.1.3.2 Rotating-disk Sorptive Extraction

3.2.1.3.3 Vacuum-assisted Sorbent Extraction

3.2.1.4 Solid-phase Microextraction

3.2.1.4.1 Classical SPME Coatings

3.2.1.4.2 New Coating Materials

3.2.2 Liquid-based Extraction Techniques

3.2.2.1 Microextraction Liquid Phase Approaches: DLLME, SDME, USAEME. 3.2.2.1.1 Dispersive-liquid-liquid microextraction

3.2.2.1.2 Single-drop Microextraction

3.2.2.1.3 Ultrasound-assisted Emulsification Microextraction

3.3 Determination of Personal Care Products

3.4 Future Directions and Challenges

Acknowledgements

References

4 New Psychoactive Substances

4.1 Overview of New Psychoactive Substances

4.1.1 Properties

4.1.2 NPS Market, Dynamics and International Control

4.1.3 Potential Metabolites and/or Transformation Products

4.1.4 Occurrence in the Environment

4.2 Sample Preparation and Collection

4.2.1 Urban Wastewater. 4.2.1.1 Protocols for Collecting and Preparing Samples

4.2.1.2 Extraction Procedures and Clean-up

4.2.2 Other Environmental Matrices

4.3 Determination of New Psychoactive Substances

4.3.1 Development of the Instrumental Method. 4.3.1.1 Chromatographic Separation

4.3.1.2 Detection

4.3.2 Figures of Merit

4.3.3 Hits and Tips

4.4 Future Direction and Challenges

Acknowledgments

References

5 Artificial Sweeteners

5.1 Overview of Artificial Sweeteners

5.1.1 Properties

5.1.2 Legislation and Environmental Risk Assessment

5.1.3 Reported or Potential Metabolites and/or Transformation Products

5.1.4 Occurrence in the Environment

5.2 Sample Preparation and Collection. 5.2.1 Protocols for Collecting and Preparing Samples

5.2.2 Sample Extraction and Clean-up

5.3 Determination of Artificial Sweeteners. 5.3.1 Development of the Instrumental Method

5.3.1.1 Chromatography

5.3.1.2 Detection

5.3.2 Figures of Merit

5.3.3 Hints and Tips

5.4 Future Directions and Challenges

References

6 Perfluorinated Substances

6.1 Overview of Perfluoroalkyl Substances

6.1.1 Properties

6.1.2 Legislation

6.1.3 Reported or Potential Metabolites and/or Transformation Products

6.1.4 Occurrence in the Environment

6.2 Sample Preparation and Collection. 6.2.1 Protocols for Collecting and Preparing Samples

6.2.2 Sample Extraction and Clean-up

6.3 Determination of PFASs. 6.3.1 Development of the Instrumental Method

6.3.1.1 Chromatography-Mass Spectrometry

6.3.1.2 Biosensors

6.3.2 Figures of Merit

6.3.3 Hints and Tips

6.4 Future Directions and Challenges

References

7 High Production Volume Chemicals

7.1 Overview of High Production Volume Chemicals

7.1.1 Properties

7.1.2 Legislation

7.1.3 Reported or Potential Metabolites and/or Transformation Products

7.1.4 Occurrence

7.2 Sample Preparation and Collection. 7.2.1 Protocols for Collecting and Preparing Samples. 7.2.1.1 Water

7.2.1.2 Air and Dust

7.2.1.3 Soil, Sediments, and Sludge

7.2.1.4 Biota

7.2.2 Sample Extraction and Clean-Up. 7.2.2.1 Water

7.2.2.2 Air and Dust

7.2.2.3 Soil, Sediments, and Sludge

7.2.2.4 Biota

7.3 Determination of High Production Volume Chemicals. 7.3.1 Development of the Instrumental Method

7.3.2 Figures of Merit

7.3.3 Hints and Tips

7.4 Future Directions and Challenges

Acknowledgments

References

8 Musk Fragrances

8.1 Overview of Musk Fragrances

8.1.1 Properties

8.1.2 Legislation

8.1.3 Reported or Potential Metabolites and/or Transformation Products

8.1.4 Occurrence in the Environment

8.1.4.1 Occurrence in Wastewater and Sewage Sludge

8.1.4.2 Occurrence in Surface Water, Soils, Sediments and Air

8.1.4.3 Occurrence in Biota

8.2 Sample Preparation and Collection

8.2.1 Protocols for Collecting and Preparing Samples

8.2.1.1 Air Samples

8.2.1.2 Water Samples

8.2.1.3 Sludge, Soil and Sediment Samples

8.2.1.4 Biota

8.2.2 Sample Extraction and Clean-up. 8.2.2.1 Air Samples

8.2.2.2 Water Samples

8.2.2.3 Sludge, Soil and Sediment Samples

8.2.2.4 Biota

8.3 Determination of Musk Fragrances. 8.3.1 Chromatography

8.3.2 Detection

8.4 Future Directions and Challenges

References

9 Disinfection Byproducts in Water

9.1 Overview of Main DBP Classes

9.1.1 Properties

9.1.2 Legislation

9.1.3 Potential Metabolites and/or Transformation Products

9.1.4 Occurrence in the Environment

9.2 Sample Preparation and Collection. 9.2.1 Protocols for Collecting and Preparing Samples

9.2.2 Sample Extraction and Clean-up

9.3 Determination of DBPs

9.3.1 Development of the Instrumental Method. 9.3.1.1 Chromatography

9.3.1.2 Detection

9.3.2 Figures of Merit. 9.3.2.1 Linearity

9.3.2.2 Precision and Accuracy

9.3.2.3 Sensitivity

9.3.3 Hints and Tips

9.4 Future Directions and Challenges

Acknowledgements

References

10 Microplastics

10.1 Overview of Micro- and Nanoplastics. 10.1.1 Properties

10.1.2 Legislation

10.1.3 Origin and Distribution

10.1.4 Occurrence in the Environment

10.1.4.1 Water Systems

10.1.4.2 Sediments

10.1.4.3 Biota

10.2 Sample Preparation and Collection. 10.2.1 Protocols for Collecting and Preparing Samples

10.2.1.1 Water

10.2.1.2 Sediment

10.2.1.3 Biota

10.2.2 Sample Extraction and Clean-up

10.2.2.1 Separation

10.2.2.2 Matrix Removal by Digestion

10.3 Determination of MNPLs

10.3.1 Physical Characterization

10.3.2 Chemical Characterization

10.4 Future Directions and Challenges

Acknowledgments

References

Index

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Edited byNúria Fontanals and Rosa Maria MarcéUniversitat Rovira i Virgili, Spain

Esteban Alonso Departamento de Química Analítica Universidad de Sevilla Sevilla, Spain

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Simple and miniaturized sample preparation techniques have been considered in recent years as optimal alternatives [79]. Among them, solid phase microextraction (SPME) is the most used technique, although the application of QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe)-based protocols [21, 80], stir bar sorptive extraction (SBSE) [77], as well as liquid-phase microextraction (LPME) [81, 82], has also been suitable for the extraction of pesticides from water matrices.

SPME is a simple, sensitive, rapid and solvent-free technique in which the organic compounds are adsorbed/absorbed (depending on fiber coating) directly from the aqueous sample into the fiber and then thermally desorbed at the injection port of the GC, considerably simplifying the analysis procedure. In this sense, the availability of SPME devices in latest GC equipment leads to the complete automatization of the analytical process, allowing for improving data quality, the productivity of staff and instruments, and increasing the sample throughput [83]. This has been demonstrated in recent methodologies involving the on-line combination of SPME and GC coupled to high-resolution mass spectrometry (HRMS) allowing for the determination of priority substances, including pesticides, in surface and wastewaters [84, 85] providing limits of quantification (LOQs) at ng l−1 levels. Novel SPME sorbents, such as magnetic deep eutectic solvent (DES)-based polymeric hydrogel [86] and carbon nanomaterials [87, 88], have been successfully applied for the monitoring of pesticides in different water resources as can be seen in Table 1.1.

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