Thin-layer and gas-liquid chromatographic procedures for the determination of perazine and its metabolites in human body fluids.

The quantitative determination of perazine, a neuroleptic drug, and its metabolites in body fluids is difficult in view of the low concentrations to be expected under therapeutic conditions as well as of the problem of convenient detectors. Different methods for extraction and measurement of perazine concentration in blood samples are discussed, with special consideration of partition coefficients and the properties of the chromatographic systems (thin-layer and gas-liquid chromatography). A new and simple method for rapid gas chromatographic determination of perazine is presented.