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Project: Measurement and interpretation of electrokinetic phenomena

Number: 2001-035-1-100
Start: 01 September 2001
End: 17 October 2005
Project of
Chair:
Members:
Objective

- Discuss the various electrokinetic phenomena and give recommendations on the use of the different techniques.

- Discuss briefly the theories of electrokinetic phenomena.

Description

(previous 160/5/98)

Collect and spread the available and updated scientific information about the main electrokinetic phenomena. This includes:

  • fundamental background and clarification of notions used in electrokinetics
  • discussion of theoretical models, with emphasis on the validity and usefulness of the various models
  • critical evaluation of experimental methods with their ranges of applicability and limitations (electrophoresis, streaming potential/current, electroosmosis, dielectric dispersion, electro-acoustics)
  • description of model systems that can be used as standards for each technique
  • elucidation of the physicochemical information that can be obtained from the use of a given method and the corresponding theoretical models
Progress

The project was first discussed in the Electrokinetic Phenomena Conferencia held in Salzburg (1998). A significant number of specialists in the field agreed to contribute and sent their chapters to the coordinator during 1999-2000.

A meeting of the Task Group took place during the Electrokinetic Phenomena Conference in Dresden, October 2000. The discussion made clear that the project is ambitious with many difficulties that have to be settled. After the workshop written comments were sent to the coordinator by several members of the task group and a preliminary list of recommended symbols was produced. Restructuring of the draft has been demanding and the second draft was completed just before the GA in Brisbane (July 2001).

This project was presented at a poster session at the IUPAC Congress/GA July 2001
>view pdf - 95KB<

A final period is required to produce a document that gives balanced guidelines for the use of electrokinetic methods and the correct interpretation of the results. There is a large number of electrokinetic techniques that all need attention including their theoretical background (which is complicated even for ordinary surfaces).

The working party will met at the EKP Conference, August 2002, in Cracow (Poland) to discuss the progress and advise on open questions.

Feb 2005 - A final draft of this Technical Report was submitted to PAC for publication.

October 2005 - project completed - IUPAC Technical Report in Pure Appl. Chem. 77(10), 1753-1805, 2005