Fresenius' Journal of Analytical Chemistry

, Volume 351, Issue 8, pp 724–728 | Cite as

Flow injection near-infrared determination of ethanol in chloroform

  • Emilio López-Anreus
  • Salvador Garrigues
  • Migue de la Guardia
Original Papers Organic Chemistry/Materials

Abstract

A simple and direct flow injection (FIA) procedure has been developed for the determination of the stabilizing agent ethanol in chloroform samples. The procedure is based on the use of the absorbance band of ethanol in the near-infrared (NIR) region at 2272 nm, measured in front of a reference sample of chloroform stabilized with amylene. The method developed provides a limit of detection of 0.0045% (v/v) and a dynamic range until 10% (v/v) with a typical variation coefficient of 0.4% for six independent analysis of a real sample containing approximately 1% (v/v) of ethanol. The sample injection frequency allowed by the method is 78 h−1.

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Emilio López-Anreus
    • 1
  • Salvador Garrigues
    • 1
  • Migue de la Guardia
    • 1
  1. 1.Department of Analytical ChemistryUniversity of ValenciaBurjassot (Valencia)Spain

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