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Determination of Isosorbide Nitrate and Its Analogues in Pharmaceuticals by High-Performance Liquid Chromatography

應用液相層析法測定Isosorbide Nitrate及其類似物與其製劑

摘要


逆相高效液相層析法已發展利用於鑑別及測定isosorbide dinitrate (ISDN),isosorbide 5-monoitrate (IS5MN)及其降解物isosorbide 2-mononitrate (IS2MN),同時應用於分析此二成分之製劑。 整個高效液相層析系統由Waters 600型幫浦,700型之自動檢體採樣機與高容量檢品注射圈活瓣、486型可變波長之紫外光偵測器,偵測波長設定於220 nm及用於圖譜積分之745B型積分儀組成。以C18 (3.9mm×250mm, 10um i. d.)之層析管於同濃度移動相pH 4.75含sodium hexanesulfonic acid-acetonitrile,流速1.5ml/min。於三十分鐘內能將ISDN,IS5MN,內部標準品4-aminoaceto-phenone及ISDN之次要代謝物,亦為降解物完全分離並予以定量,本研究所用之方法僅須單-移動相即能將所欲分離isosorbide nitrate esters完全分離。 0.05至2.5mg/ml之標準溶液稀釋液之校正係數分別測定如下:ISDN,r=0.9998及標準偏差0.48%;IS5MN,r=0.9999及標準偏差0.08%;IS2MN,r=0.9999及標準偏差0.05%。由市售口服錠、持續錠及乳糖稀釋之ISDN原料藥應用本研究所發展之方法其回收率均大於98%。因此研究所使用之分析方法快速、簡單又確實可用。

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並列摘要


A reversed-phase column liquid chromatographic method was developed for analysis of isosorbide dinitrate (ISDN), isosorbide 5-mononitrate (IS5MN) and isosorbide 2-mononitrate (IS2MN) and its pharmaceuticals. Chromatography is performed to Bondclone ODS column using a mobile phase consisting of acetonitrile-PIC 86 buffer, pH 4.75 (13:87) with ultraviolet wavelength at 220 nm. The linearity calibration range was 0.05 mg/ml to 2.5 mg/ml (r=0.9999), and recoveries were generally greater than 98.0%

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