【Abstract】 A HPLC method for the determination of diltiazem hydrochloride for injection and its related substances was presented. Diamonsil C18 column was used, with mobile phase of 0.1 mol/L sodium acetate buffer solution (pH6.2)-methanol-acetonitrile (5∶6∶6) and at detection wavelength of 236 nm. The detection limit was 0.2 ng. The linear range was 6~14 μg/ml, and average recovery was 100.2% with RSD of 0.52%. 更多还原 【关键词】 注射用盐酸地尔硫; 有关物质; HPLC; 测定; 【Key words】 diltiazem hydrochloride for injection; related substance; HPLC; determination;