KMID : 0370219860300050214
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Yakhak Hoeji 1986 Volume.30 No. 5 p.214 ~ p.219
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Determination of Ephedrine Hydrochloride and its Analogs by GC-FPD
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Abstract
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A gas chromatographic procedure is described for the quantitative analysis of ephedrine hydrochloride, pseudoephedrine hydrochloride and norephedrine hydrochloride in pharmaceutical preparations. The procedure was based upon the determination of thioureas formed from amines and phenylisothiocyanate. The recoveries of ephedrine, pseudoephedrine and norephedrine from pharmaceutical preparations were 100.7(S.E. 0.9), 99. 5(0. 8), 99.1(0.8) and 99.1%(0.9), respectively. The high accuracy and precision of this assay were inherent in the flame photometric detectors normally used in gas chromatography.
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