Gas chromatographic--mass spectrometric determination of haloperidol in plasma. Application to pharmacokinetics.
An improved gas chromatographic-mass spectrometric chemical ionization assay for the quantitative determination of haloperidol in body fluids is presented. A fused silica, bonded phase capillary column, combined with negative ion chemical ionization (NICI), ammonia as a selective reagent gas and the monitoring of preselected characteristic ions (SIM), provide the combined sensitivity and selectivity necessary for reliable measurements in the low ng/ml range. The lower limit of detection was 0.1 ng/ml plasma and the calibration curve linear in the measured range of 0.1-5 ng/ml. In combination with the excellent imprecision and inaccuracy data and a recovery exceeding 90%, the method is very well suited for quantitative determinations of plasma samples generated during clinical studies, e.g. evaluating the pharmacokinetics and/or bioavailability/bioequivalence of haloperidol.
Häring
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N
Analytical Research Centre, LAB GmbH, Neu-Ulm, Fed. Rep. of Germany.
Salama
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Z
Todesko
L
L
Jaeger
H
H
D001682:Biological Availability; D055598:Chemical Phenomena; D002621:Chemistry; D004355:Drug Stability; D008401:Gas Chromatography-Mass Spectrometry; D006220:Haloperidol / Q000097:blood* / Q000493:pharmacokinetics; D006801:Humans; D011237:Predictive Value of Tests
D006220:Haloperidol