Species Selective Detection in Gas Chromatography Through Photothermal Deflection Spectroscopy
Journal of Chromatography
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.
Species Selective Detection in Gas Chromatography Through Photothermal Deflection Spectroscopy Scott L. Nickolaisen and Stephen E. Bialkowski Journal of Chromatography 366 127 1986