## Abstract An instrumental planar chromatographic (HPTLC) method for quantitative analysis of clozapine in human serum was developed and validated. Clozapine was extracted with __n__βhexaneβisoamyl alcohol (75:25 v/v). The chromatographic separation was achieved on precoated silica gel F 254 HPTLC
Serum concentrations of clozapine determined by nitrogen selective gas chromatography
β Scribed by R. Heipertz; H. Pilz; W. Beckers
- Publisher
- Springer-Verlag
- Year
- 1977
- Tongue
- English
- Weight
- 244 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0340-5761
No coin nor oath required. For personal study only.
β¦ Synopsis
A simple gas-liquid-chromatographic method employing a nitrogen selective detector for the quantitative determination of clozapine in serum is presented. The method involves after the addition of dibenzepine as internal standard the extraction into diethylether followed by analysis of the extract dissolved in methanol. Detector linearity was established over the range of 100-1000 ng/ml serum. Clozapine levels of 9 manic patients analysed by this method are presented and discussed. A linear relationship between daily intake (mg/kg body weight) and serum levels (ng/ml) was established.
π SIMILAR VOLUMES
A gas chromatographic method for the estimation of ethotoin (Peganone@) in serum has been developed. The method involves the use of a flame ionization detector and allows for the determination of the drug down to 1 mg/l. This is sufficient for analysing ethotoin in serum after therapeutic doses. The
rac-Isradipine is a dihydropyridine type calcium antagonist. Its calcium entry blocking effect is due primarily to the (+)-(S)-enantiomer. This study describes a sensitive enantioselective method for the determination of isradipine in human serum. Following alkaline extraction into hexane, the enant