Issue 6, 1988

Development of a plasma emission gas chromatographic detector for the simultaneous, selective detection of chlorine, bromine and carbon

Abstract

A helium microwave-induced plasma (He-MIP) was used in combination with oscillating interference filters as an element-selective detector for capillary gas chromatography. Spectral selection of the MIP radiation was achieved only by narrow band optical interference filters, without installation of a monochromator system. Oscillating optical filters were introduced into this system to register photoelectric signals with the aid of a lock-in amplifier and the modulation technique. A preliminary characterisation of this detector was carried out by investigating the selective and linear behaviour and determining the detection limits. Further, chromatograms of multi-component mixtures were recorded by multi-element detection using several filters and the introduction of a beam-splitting light-guide optic. In addition, tentative experiments, designed to examine the possibility of empirical formula measurements, have been demonstrated by two examples.

Article information

Article type
Paper

J. Anal. At. Spectrom., 1988,3, 907-913

Development of a plasma emission gas chromatographic detector for the simultaneous, selective detection of chlorine, bromine and carbon

H. Müller and K. Cammann, J. Anal. At. Spectrom., 1988, 3, 907 DOI: 10.1039/JA9880300907

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