Gas chromatographic analysis of estrogens from pregnant mares' urine using glass capillary columns

Abstract

SummaryGlass capillary columns coated with OV-225 and Silar 1OC were used to analyze estrogens (as their trimethylsilyl derivatives) present in pregnant mares' urine. Such columns provide better resolution in a shorter time than the corresponding packed columns, as exemplified by the separation of estrone from equilin.