目的:改进复方珊瑚姜溶液尿素咪康唑软膏复合制剂中水杨酸的含量测定方法。方法:采用十八烷基硅烷键合硅胶为填充剂的色谱柱,以甲醇-0.4%磷酸溶液(60∶40)为流动相,流速1.0 m L/min,检测波长为305 nm,柱温25℃。结果:水杨酸在(0.0619 g^...目的:改进复方珊瑚姜溶液尿素咪康唑软膏复合制剂中水杨酸的含量测定方法。方法:采用十八烷基硅烷键合硅胶为填充剂的色谱柱,以甲醇-0.4%磷酸溶液(60∶40)为流动相,流速1.0 m L/min,检测波长为305 nm,柱温25℃。结果:水杨酸在(0.0619 g^0.0746 g)范围内线性关系良好(R=1),方法回收率为101.12%(RSD=1.51%)。结论:该方法简便、快速、准确,可用于该制剂中水杨酸的定量测定。展开更多
We examined the stability of amoxicillin trihydrate from the preparation Augmentin in compounded forms of drugs such as vaginal suppositories and ointments. The quantity of the antibiotic in the preparations studied w...We examined the stability of amoxicillin trihydrate from the preparation Augmentin in compounded forms of drugs such as vaginal suppositories and ointments. The quantity of the antibiotic in the preparations studied was determined directly after they had been made and after a lapse of 7 and 14 days. We also carried out comparative examinations of the stability of sodium amoxicillin (Tarommentin) and sodium ampicillin (Ampicillin) in ointments with an addition of a boric acid solution. The examinations confirmed the stability of amoxicillin trihydrate in suppositories and in anhydrous and hydrated ointments. The content of this antibiotic in ointmems with an addition of a boric acid solution decreases slightly. Comparative studies of the stability of sodium amoxicillin and sodium amoxicillin revealed a markedly lower stability of the two antibiotics in comparison to the stability of amoxicillin trihydrate.展开更多
文摘We examined the stability of amoxicillin trihydrate from the preparation Augmentin in compounded forms of drugs such as vaginal suppositories and ointments. The quantity of the antibiotic in the preparations studied was determined directly after they had been made and after a lapse of 7 and 14 days. We also carried out comparative examinations of the stability of sodium amoxicillin (Tarommentin) and sodium ampicillin (Ampicillin) in ointments with an addition of a boric acid solution. The examinations confirmed the stability of amoxicillin trihydrate in suppositories and in anhydrous and hydrated ointments. The content of this antibiotic in ointmems with an addition of a boric acid solution decreases slightly. Comparative studies of the stability of sodium amoxicillin and sodium amoxicillin revealed a markedly lower stability of the two antibiotics in comparison to the stability of amoxicillin trihydrate.