摘要
文章提出了紫外分光光度示差法测定味精中谷氨酸钠含量的方法。以220nm为测定波长,在一定的实验条件下,谷氨酸钠溶液浓度在4g/L^12g/L范围内成线性关系,精密度RSD=0.4%,加标回收率为98%。与国标分析方法比较最大相对误差不大于2%。
In this paper, Monosodium L-Glutamate is determined by Differentia-ultraviolet spectrophotometry, the detection wavelength is 220nm, the linern range is 2~16g/ml, the average rate of recovery is 98% with RSD=0.4%. The maximum relative deviation is blow 2% when compared with GB.
出处
《四川理工学院学报(自然科学版)》
CAS
2006年第5期36-38,共3页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
关键词
紫外分光光度法
谷氨酸钠
示差法
Differentia- ultraviolet spectrophotometry
Monosodium L-Glutamate