Abstract
Factors affecting the sensitivity and selectivity of the determination of diuretics, anabolic steroids, central nervous system stimulants, and narcotics in the analysis of human urine extracts by high-performance liquid chromatography-tandem mass spectrometry with atmospheric pressure electrospray ionization and recording of positive ions were investigated. Mass spectra were obtained for all of the test compounds; the characteristic ions, retention times, detection limits, degree of ionization suppression by the matrix, the extraction of the analytes from human biological fluids were determined for all analytes; the selectivity and specificity of determination were evaluated.
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