Determination of zopiclone in tablets by HPLC and UV-spectrophotometry

被引:12
作者
Paw, B [1 ]
Misztal, G [1 ]
机构
[1] Med Acad, Fac Pharm, Dept Med Chem, PL-20093 Lublin, Poland
关键词
zopiclone; reversed-phase chromatography; UV-spectrophotometry; analysis in tablets;
D O I
10.1016/S0731-7085(00)00379-4
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Rapid, simple and accurate chromatographic (HPLC) and spectrophotometric methods for the determination of zopiclone in tablets were elaborated. Acetonitrile was found to be a suitable extraction solvent. The samples were chromatographed on Nova-Pak C18 column and UV detection at 304 nm. The elution was achieved isocratically with a mobile phase of 0.067 M phosphate buffer pH 7.95 - acetonitrile (55:45, v/v). Diazepam was applied as an internal standard. The method was validated for precision, linearity, accuracy and limit of detection. The recovery (mean +/- SD) in HPLC was 99.85 +/- 0.04% and in the UV-spectrophotometry, 100.08 +/- 0.09%. (C) 2000 Published by Elsevier Science B.V.
引用
收藏
页码:819 / 823
页数:5
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