Wall-coated open tubular column coupled with nitrogen-selective detector for routine GLC determination of diazepam, meprobamate, phenylbutazone, and thioridazine in serum

Abstract

The selectivity and sensitivity provided by a wall-coated open tubular column coupled with a nitrogen-selective detector allowed rapid, accurate determination of diazepam, meprobamate, phenylbutazone, and thioridazine in serum in the same chromatographic system using 100--200 microliters of sample.