首次报道了CEC法进行药物成分测定的应用研究.采用反相毛细管电色谱法,以非那西丁为内标,UV检测波长为214nm,以乙N:Tis-磷酸缓冲液(70:30,V/V,pH2.6)为流动相,在75μm(1.D.)×20cm的毛细管ODS(5μm)填充柱上测定了氨茶碱和鲁米那片剂中茶碱和苯巴比妥的含量,在所测的浓度范围内有良好的线性关系和回收率. The application of CEC method for the determination of drug components was reported for the first time.Reversed-phase capillary electrochromatography (HPLC) with phenacetin was used as an internal standard.The detection wavelength of UV was 214 nm.Using N: Tis-phosphate buffer (70:30, V / V, pH2.6) as mobile phase, theophylline and phenobarbital in aminophylline and luminal tablets were measured on a packed column of 75 μm (1.D.) × 20 cm capillary ODS (5 μm) Of the content, in the measured concentration range has a good linear relationship and recovery.