Analysis of ACE inhibitors in pharmaceutical dosage forms by derivative UV spectroscopy and liquid chromatography (HPLC)

被引:127
作者
Bonazzi, D [1 ]
Gotti, R [1 ]
Andrisano, V [1 ]
Cavrini, V [1 ]
机构
[1] UNIV BOLOGNA,DIPARTIMENTO SCI FARMACEUT,I-40126 BOLOGNA,ITALY
关键词
derivative spectroscopy; high performance liquid chromatography; ACE inhibitors; drug analysis; pharmaceutical dosage forms;
D O I
10.1016/S0731-7085(97)00075-7
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Derivative UV spectroscopy and high performance liquid chromatography (HPLC) were applied to the determination of angiotensin-converting enzyme (ACE) inhibitors in their pharmaceutical dosage forms. For spectrophotometric determinations, the more appropriate derivative order was selected for each drug: ramipril (third-order), benazepril (second-order), enalapril maleate (second-order), lisinopril (first- and second-order) and quinapril (first-order). Reverse phase HPLC procedures (ODS column) were developed able to provide a single, symmetric peak for each drug; mixtures A-B, where A is 20 mM sodium heptansulphonate (pH 2.5) and B is acetonitrile-THF (95:5 v/v), proved to be suitable mobile phases to obtain selective separations of the cited ACE inhibitors. At ambient temperature, a low pH value (2.5) was found to be critical to avoid peak splitting and band broadening. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:431 / 438
页数:8
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