title: Sample pretreatment in the trace determination of drugs in biological fluids.
abstract: Because of their complex nature, biological samples are often subjected to a pretreatment step before instrumental analysis. This paper outlines the methods available for sample preparation prior to gas or high-pressure liquid chromatography. Practical aspects are emphasized.
authors.affiliation: Department of Pharmacy, The General Infirmary, Leeds, Yorkshire, England.
authors.forename: A C
authors.initials: AC
authors.lastname: Mehta