摘要
复方苯甲酸软膏以苯溶解,经硅胶G薄层层析,乙酸乙酯-丙酮(9:2)展开,可用双波长薄层扫描法测定苯甲酸(λ_S=223 nm,λ_R=320 nm)和水杨酸(λ_S=295 nm,λ_R=360 nm)的含量。
Using benzene as solvent and ethyl acetate-acetone as developer,benzoic and salicylic acids in benzoic and salicylic acids ointment were determinedby dual wavelength thin-layer chromatography densitometry(λ_s=223nm,λ_R=320nm for benzoic acid;and λ_s =295nm,λ_R=360nm for salicylic acid).
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
1991年第10期459-460,449,共3页
Chinese Journal of Pharmaceuticals
关键词
苯甲酸
消毒防腐药
薄层色谱
thin-layer chromatography
benzoic and salicylic acid ointment
benzoic acid
salicylic acid
determination
