摘要
头孢氨苄与茚三酮在酸性水溶液中能发生显色反应。表观摩尔吸光系数是７．９３×１０３Ｌ·ｍｏｌ－１·ｃｍ－１。作者详细研究了该反应的条件，应用拟定的方法测定药物制剂含量与药典方法一致，回收率在９９％以上。
Cephalexin reacts with ninhydrin in acid medium to give a violet colour product with maximum absorption wavelength at 566 run. The optimum condition of determination was reported. The liner range of Beer's law is 0.5 - 50 mg/L. The apparent molar absorptivity is 7.93 ×103L·mol-1·cm-1 at 566 nm. The method is successfully applied to the determination of cephalexin for pharmaceutical preparation.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1998年第8期1011-1013,共3页
Chinese Journal of Analytical Chemistry
