双波长分光光度法测定复合氨基酸注射液中色氨酸和酪氨酸的含量  

DUAL WAVELENGTH UV SPECTROPHOTOMETRIC DETERMINATION OF L-TRYPTOPHAN AND LTYROSINE IN COMPOUND AMINO ACIDS INJECTION

作　　者：张顺妹 尤时龙 

机构地区：[1]上海药品检验所,上海200031

出　　处：《中国医药工业杂志》1990年第11期511-513,共3页Chinese Journal of Pharmaceuticals

摘　　要：用双波长分光光度法测定18氨基酸注射液中的色氨酸和酪氨酸。样品以0.1mol/L氢氧化钠溶液碱化,酪氨酸吸收峰红移。色氨酸和酪氨酸测定的平均回收率分别为100.0％和100.3％,变异系数为0.45％和0.17％,方法简便适用。A method of dual wavelength UV spectrophotometric determina-tion of L-tryptophan and L-tyrosine in compound amino acids injection (18) wasstudied. The sample we made alkaline with 0.1 mol/L sodium hydroxide: solu-tion and the shifted spectra of the compounds was determined. The percentrecoveries ane cv values of L-tryptophan and L-tyrosine were 100.0% 100.3%and 0.45% 0.17%, respectively. The method is simple and accurate.

关 键 词：色氨酸 酪氨酸 分光光度法 

分 类 号：R927.2[医药卫生—药学]