摘要
目的:探讨操作方便的新显色剂。方法:以0.5％对二甲氨基苯甲醛为显色剂,用紫外分光光度法在最大吸收波长 403nm 处测定红霉素肠溶片的溶出度。结果:红霉素溶液浓度在20～70ug.ml^(-1)(r=0.9996)范围内与吸收度呈良好的线性关系。结论:通过3种显色剂进行比较,本法操作简便,结果准确可靠。
Objective: Study on the simple new colour regent. Method: A UV spectrophotometrymethod is developed for the dissolution determination of Erythromycin Enteric-coated Tablets. The 0. 5%p-Dimethylaminobenzaldhyde is used as colour regent,the monitoring wavelength is 403 nm. Results: Thelinear range are 20～70μg. ml^(-1) (r = 0. 9996). Conclusion: The method is simple and accurate by comparingthe three colour recents.
出处
《中国药品标准》
CAS
2002年第5期53-54,共2页
Drug Standards of China
