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Geometric scaling effects in electrical field flow fractionation. 2. Experimental results.

Authors
  • Gale, Bruce K
  • Caldwell, Karin D
  • Frazier, A Bruno
Type
Published Article
Journal
Analytical chemistry
Publication Date
Mar 01, 2002
Volume
74
Issue
5
Pages
1024–1030
Identifiers
PMID: 11924959
Source
Medline
License
Unknown

Abstract

Geometric scaling of microelectrical field flow fractionation (micro-EFFF) systems is investigated experimentally and compared to theory and to macroscale EFFF systems. Experimental results are presented to demonstrate that the miniaturized system operates according to the scaling theory associated with the system. Demonstrated improvements in the channels include increased retention and resolution and decreased peak broadening, electrical time constants, relaxation time, power consumption, and sample size. Additionally, scaling effects related to the compression of separation zones in the miniaturized EFFF systems are discussed.

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