Journal Published Online: 01 October 1984
Volume 29, Issue 4

Improved Recovery and Stability of Ethanol in Automated Headspace Analysis

CODEN: JFSCAS

Abstract

Solutions are reported here for two problems in automated headspace gas chromatographic analysis for ethanol. The first is the catalytic oxidation of ethanol by oxyhemoglobin, a process that is limited only by the amount of oxygen in the sealed vessel. This reaction is prevented by the addition of sodium dithionite. The other problem, the lack of a suitable salting-out agent, led to the selection of ammonium sulfate, which improved recovery of ethanol as well as enhancing method precision. A procedure incorporating these improvements is described.

Author Information

Christmore, DS
Bio-Science Laboratories, Van Nuys, CA
Kelly, RC
Willow Toxicology Group, Pasadena, CA
Doshier, LA
Bio-Science Laboratories, Van Nuys, CA
Pages: 7
Price: $25.00
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Stock #: JFS11770J
ISSN: 0022-1198
DOI: 10.1520/JFS11770J