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Electrochemical Detection in Liquid Flow Analytical Techniques: Characterization and Classification (IUPAC Technical Report)

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Chemistry International -- Newsmagazine for IUPAC
From the journal Chemistry International -- Newsmagazine for IUPAC Volume 26 Issue 6

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Electrochemical Detection in Liquid Flow Analytical Techniques: Characterization and Classification (IUPAC Technical Report)

K. Tóth, K. Stulík, W. Kutner, Z. Fehér,

and E. Lindner

Pure and Applied Chemistry

Vol. 76, No. 6, pp. 1119–1138, 2004

Since the early 1970s, a large number of papers has been published on different liquid flow analytical techniques. The flow analysis database on the World Wide Web <www.flowinjection.com> lists more than 10 000 references. In 1994, IUPAC classified the analytical methods based on flowing media and defined flow analytical systems, component parts, and terms for describing their performance. Then, fundamentals of analytical aspects of chemical process control were discussed in 1999 and information essential for characterizing a flow-based analytical system has been provided in 2002. The aim of the present report is to extend the existing, recommended, and consistent terminology to electrochemical detection and detectors used in flow analytical techniques with a brief critical overview of the currently used electrochemical flow-through detectors.

Liquid flow analytical techniques are classified, and definitions are provided of flow-injection analysis, segmented flow analysis, flow titration, continuous monitoring, liquid chromatography, and capillary electrophoresis. Electrochemical detection and flow through detection cells are characterized with respect to the surface and bulk detection. The detector performance is discussed in terms of its principal analytical parameters, such as detection limit and dynamic concentration range, as well as its dynamic characteristics, such as the response time, sampling frequency, transport lag, and long-term stability. Moreover, different detection modes are critically evaluated, including both potentiostatic and galvano-static techniques. Factors influencing sensitivity and detection limit, which include electronic and hydrodynamic approach, are also discussed. Different detector designs are critically reviewed, and the special features of electrochemical detectors for flow analytical techniques are emphasized.

www.iupac.org/publications/pac/2004/7606/7606x1119.html

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Page last modified 10 November 2004.

Copyright © 2003-2004 International Union of Pure and Applied Chemistry.

Questions regarding the website, please contact edit.ci@iupac.org

Published Online: 2009-09-01
Published in Print: 2004-11

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  28. Functional and Nano Systems
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  30. Biomolecular Chemistry
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  38. Mark Your Calendar
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https://doi.org/10.1515/ci.2004.26.6.22b

Articles in the same Issue

  1. From the Editor
  2. Contents
  3. Chemists in a Vulnerable World
  4. Strengthening International Science for the Benefit of Society: An Overview of the International Council for Science
  5. Women in Chemistry: Her Lab in Your Life
  6. The Future of Chemistry Education
  7. Young Observers Going to Beijing
  8. Marian Góral Received the 2004 Franzosini Award
  9. International Year of Physics, 2005
  10. Electromotivity to Replace Electromotive Force?
  11. Bonded by Stereobonds
  12. Reference Methods, Standards, and Applications of Photoluminescence
  13. Glossary of Terms Used in Biomolecular Screening
  14. Practical Studies for Medicinal Chemistry Guidelines
  15. Internationally Agreed Terminology for Observations in Scientific Communication
  16. Biophysico-Chemical Processes of Heavy Metals and Metalloids in Soil Environments
  17. Quantities, Terminology, and Symbols in Photothermal and Related Spectroscopies (IUPAC Recommendations 2004)
  18. Electrochemical Detection in Liquid Flow Analytical Techniques: Characterization and Classification (IUPAC Technical Report)
  19. Piezoelectric Chemical Sensors (IUPAC Technical Report)
  20. Guidelines for Calibration in Analytical Chemistry. Part 2: Multicomponent Calibration (IUPAC Technical Report)
  21. Critical Evaluation of the State of the Art of the Analysis of Light Elements in Thin Films Demonstrated Using the Examples of SiOXNY and AlOXNY Films (IUPAC Technical Report)
  22. Mechanisms of Immunosensitization to Metals (IUPAC Technical Report)
  23. Chemistry at the Interfaces
  24. Macromolecules and Materials Science
  25. Introdução à Química Orgânica
  26. Polymers in Medicine, Nanotechnology, Degradation, and Stabilization
  27. Biodegradable Polymers and Plastics
  28. Functional and Nano Systems
  29. π-Electron Systems
  30. Biomolecular Chemistry
  31. Food Safety
  32. Analytical Methodologies in Trace Metal Speciation
  33. Hydrogen Energy
  34. Polymer Gels and Networks
  35. Nanostructured Advanced Materials
  36. Physics and Sustainable Development
  37. Mycotoxins and Phycotoxins
  38. Mark Your Calendar
  39. Index for 2004
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