doi: 10.1016/0009-8981(76)90148-0.
Improved method for measurement of serum levels of phenobarbital, carbamazepine, primidone and diphenylhydantoin by gas-liquid chromatography
- PMID: 1000864
- DOI: 10.1016/0009-8981(76)90148-0
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Improved method for measurement of serum levels of phenobarbital, carbamazepine, primidone and diphenylhydantoin by gas-liquid chromatography
Clin Chim Acta.
1976 Dec.
Abstract
A gas-liquid chromatographic method for the simultaneous determination of phenobarbital, primidone, carbamazepine and diphenylhydantoin in human serum following therapeutic doses has been developed. After extraction with chloroform, the anticonvulsant drugs were methylated with phenyltrimethylammonium hydroxide in dimethylformamide at 85 degrees C for gas-liquid chromatography. Linear temperature programming of a 1% OV-17 column was used to achieve separation and quantitation. The procedure described in the present paper is relatively simple, highly specific and sufficiently sensitive for use in routine clinical assays.
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