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  • Title: Consecutive gas chromatographic determination of phenytoin, phenobarbital, primidone, phenylethylmalondiamide, carbamazepine, trimethadione, dimethadione, ethosuximide, and valproate from the same serum specimen.
    Author: Löscher W, Göbel W.
    Journal: Epilepsia; 1978 Oct; 19(5):463-73. PubMed ID: 365519.
    Abstract:
    A quantitative gas-liquid chromatographic procedure is described for the consecutive determination of phenytoin, phenobarbital, primidone, phenylethylmalondiamide, carbamazepine, trimethadione, dimethadione, ethosuximide and valproate from a single serum specimen of 1.2 ml. After extraction from serum by two different procedures, the anticonvulsants are chromatographed without further purification on a 3% OV 17 column either with or without derivative formation by means of "on-column" methylation. Multiple internal standards are employed in order to enhance the reproducibility of drug-concentration measurement.
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