Packed-column PGC

LGCs use mainly capillary columns, while PGCs still use packed columns. PGC with capillary col-lunns is becoming more popular, but criteria such as detector compatibility, sample capacity, robustness, and temperature effects must be considered. 

Lennard and Margot (270) examined and compared traces of synthetic material from shoe soles by FTIR microspectrometry and packed-column PGC. Ding and Liu (271), in a similar analysis, examined 10 different rubber-soled shoes and 12 different automobile tires by Curie point PGC using two separate packed columns. They used varying ratios of butadiene-styrene, natural rubber, and butadiene-acrylonitrile to differentiate the samples. 

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See also in sourсe #XX -- [ ]

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