Species Selective Detection in Gas Chromatography Through Photothermal Deflection Spectroscopy

Document Type

Article

Journal/Book Title

Journal of Chromatography

Publication Date

1986

Volume

366

First Page

127

Abstract

The use of photothermal deflection spectroscopy is demonstrated as a species-selective detection technique for gas chromatographic analyses. The technique is illustrated by selectively detecting Freons dissolved in dichloromethane. It was also used selectively to detect two of the three isomers of dichlorodifluoroethylene. The mass detection limits for the Freon mixture range from 0.7 to 4 ng, showing the good sensitivity of the technique. Several applications in atmospheric analysis and liquid chromatography are briefly discussed.

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