Issue 1167, 1973

A quantitative tunable element-selective detector for gas chromatography

Abstract

A detector based on the atomic-emission spectra that result when organic compounds are decomposed in a low-pressure, microwave-sustained helium plasma is described. All of the non-metallic elements normally found in organic compounds can be sensitively and selectively detected in a linearly proportional and quantitative manner by means of conventional diffraction grating spectrometer equipment. A controlled amount of a scavenger gas is used to prevent carbon deposition inside the plasma tube. The chromatographic column outflow is split between the element-selective detector and a non-selective flame-ionisation detector. The latter acts as a reference for interpreting element-selective detector results and assists with the determination of atomic ratios and the empirical formulae of organic compounds.

Article information

Article type
Paper

Analyst, 1973,98, 432-442

A quantitative tunable element-selective detector for gas chromatography

W. R. McLean, D. L. Stanton and G. E. Penketh, Analyst, 1973, 98, 432 DOI: 10.1039/AN9739800432

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