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Extraction Techniques in Analytical Sciences. Edition No. 1. Analytical Techniques in the Sciences (AnTs) *

  • ID: 5224691
  • Book
  • November 2009
  • 308 Pages
  • John Wiley and Sons Ltd
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This book covers one of the most important areas in analytical sciences, i.e. that of extraction techniques for organic compounds in environmental and related matrices, e.g. food. This text discusses all of the key stages for analysing a sample for organic compounds from the initial sampling protocols through to the range of different extraction techniques used for solid, liquid and air samples and finally through to the final chromatographic analysis. The text provides detailed information on specific extraction techniques to prepare samples for organic compound analysis.

The topics covered include the following:

  • Initial steps for solid, aqueous and air sampling.
  • Extraction techniques for aqueous samples, including LLE, purge and trap, SPE, SPME, SBSE, SDME, membrane microextraction and MEPS.
  • Extraction techniques for solid samples, including Soxhlet, "Soxtec", shake-flask, sonication, PFE, MAE, SFE and MSPD.
  • Extraction techniques for air sampling, including whole air, enrichment approaches and desorption techniques.
  • Pre-concentration approaches for post-extraction.
  • Practical aspects for chromatographic analysis (GC and HPLC) of organic compounds.
  • Quality assurance aspects of analysis.
  • Health and safety considerations.

Key features include the following:

  • Up-to-date information on the latest development in extraction techniques for organic compounds in environmental and food matrices.
  • Written in the AnTS style, it is ideal for use as a self-study guide, as the basis of a taught course or guided reading for new "early-career" researchers.
  • Includes a resources section to guide the reader to other sources of information.

Extraction Techniques in Analytical Sciences should prove invaluable to students who are studying university-level courses – "undergraduate- to postgraduate-taught". The text will also prove invaluable as a key starting point for individuals undertaking applied research in the fields of analytical, bioanalytical, environmental and food sciences.

The Analytical Techniques in the Sciences series of books provides coverage of all of the major analytical techniques and their application in the most important areas of physical, life and material sciences. Each text is presented in an open learning/distance learning style, in which the learning objectives are clearly identified. The reader's understanding of the material is constantly evaluated by the use of self-assessment and discussion questions. Series Editor: David J. Ando

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Series Preface.



Acronyms, Abbreviations and Symbols.

About the Author.

1 Pre- and Post-Extraction Considerations.

1.1 Introduction.

1.2 Organic Compounds of Interest.

1.3 Pre-Sampling Issues.

1.4 Sampling Strategies: Solid, Aqueous and Air Samples.

1.5 An Introduction to Practical Chromatographic Analysis.

1.6 Quality Assurance Aspects.

1.7 Health and Safety Considerations.



2 Classical Approaches for Aqueous Extraction.

2.1 Introduction.

2.2 Liquid–Liquid Extraction.

2.3 Purge and Trap for Volatile Organics in Aqueous Samples.


3 Solid Phase Extraction.

3.1 Introduction.

3.2 Types of SPE Media (Sorbent).

3.3 SPE Formats and Apparatus.

3.4 Method of SPE Operation.

3.5 Solvent Selection.

3.6 Factors Affecting SPE.

3.7 Selected Methods of Analysis for SPE.

3.8 Automation and On-Line SPE.


4 Solid Phase Microextraction.

4.1 Introduction.

4.2 Theoretical Considerations.

4.3 Experimental.

4.4 Methods of Analysis: SPME–GC.

4.5 Methods of Analysis: SPME–HPLC–MS.

4.6 Automation of SPME.


5 New Developments in Microextraction.

5.1 Introduction.

5.2 Stir-Bar Sorptive Extraction (SBSE).

5.3 Liquid-Phase Microextraction.

5.4 Membrane Microextraction.

5.5 Microextraction in a Packed Syringe (MEPS).



6 Classical Approaches for Solid–Liquid Extraction.

6.1 Introduction.

6.2 Soxhlet Extraction.

6.3 Automated Soxhlet Extraction or ‘Soxtec’.

6.4 Other Approaches for Solid–Liquid Extraction.


7 Pressurized Fluid Extraction.

7.1 Introduction.

7.2 Theoretical Considerations Relating to the Extraction Process.

7.3 Instrumentation for PFE.

7.4 Method Development for PFE.

7.5 Applications of PFE.

7.6 Comparative Studies.

7.7 Miscellaneous.


8 Microwave-Assisted Extraction.

8.1 Introduction.

8.2 Instrumentation.

8.3 Applications of MAE.


9 Matrix Solid Phase Dispersion.

9.1 Introduction.

9.2 Issues on the Comparison of MSPD and SPE.

9.3 A Review of Selected Applications.


10 Supercritical Fluid Extraction.

10.1 Introduction.

10.2 Instrumentation for SFE.

10.3 Applications of SFE.

10.4 Selection of SFE Operating Parameters.



11 Air Sampling.

11.1 Introduction.

11.2 Techniques Used for Air Sampling.



12 Comparison of Extraction Methods.

12.1 Introduction.

12.2 Role of Certified Reference Materials.

12.3 Comparison of Extraction Techniques for (Semi)-Solid Samples.

12.4 Comparison of Extraction Techniques for Liquid Samples.

12.5 Comparison of Extraction Techniques for Air Sampling.



13 Resources for Extraction Techniques.

13.1 Introduction.

13.2 Role of Worldwide Web.

Responses to Self-Assessment Questions.

Glossary of Terms.

SI Units and Physical Constants.

Periodic Table.

General Index.

Application Index.

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John R. Dean Northumbria University.
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