建立了毛细管电泳-安培检测法测定盐酸去氧肾上腺素(phenylephrine hydrochloride,PHE)、重酒石酸间羟胺(metaraminol bitartrate,MR)和盐酸异丙肾上腺素(isoprenaline hydrochloride,IP)3种拟肾上腺素药物的方法.检测电位为0.950 V(Ag/AgCl为参比电极),硼酸盐浓度为50 mmol/L(pH 10.00),分离电压为18 kV,进样时间为10 s.在最佳实验条件下,3种物质在18 min内达到基线分离,在2~100 μmol/L 浓度范围内峰面积与浓度呈良好的线性关系,线性相关系数不小于 0.999.1.盐酸去氧肾上腺素、重酒石酸间羟胺和盐酸异丙肾上腺素的检出限分别为0.8、0.8和1.0 μmol/L.将所建立的方法应用于针剂样品的分析,结果令人满意.
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