期刊
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
卷 795, 期 2, 页码 257-264出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1570-0232(03)00576-2
关键词
clozapine; loxapine; zuclopenthixol; flupenthixol
A specific reversed phase-high pressure liquid chromatography (RP-HPLC) method has been developed for the simultaneous determination of clozapine (CZP), loxapine (LXP), zuclopenthixol (ZPT) and flupenthixol (FPT) in plasina. These four antipsychotic drugs are frequently used for the treatment of schizophrenia and other neuropsychiatric diseases. Carpipramine. a dihydrodibenzazepine, was used as an internal standard (I.S.). A liquid-liquid procedure was used to extract the drugs from human plasma. The analysis was performed on a XTerra(TM) MS C-18 column with UV detection. Calibration curves were linear in the range 50-1000 mug/l. The limit of quantification (LOQ) was 15 mug/l for clozapine and loxapine and 20 mug/l for zuclopenthixol and flupenthixol. The coefficient of variation (CV) for intra- and inter-day precision was 7.2% or less with accuracies within 10% for the three concentrations. This isocratic and rapid method (run time < 10 min) is useful for the management of acute intoxication. (C) 2003 Elsevier B.V. All rights reserved.
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