紫外分光光度法测定VC银翘片中维生素C含量  

Ultraviolet spectrophotometric method determination of the content of the vitamin C in the VC fructus forsythiae flakes

作　　者：开启余[1] 

机构地区：[1]江苏盐城工业职业技术学院,江苏盐城224005

出　　处：《福建分析测试》2015年第3期35-37,共3页Fujian Analysis & Testing

摘　　要：本文采用紫外分光光度法测定维C银翘片中维生素C含量,最大吸收波长为243nm,在p H=6的弱酸性条件下测定吸光度。线性回归方程:A=0.0040+0.0656*C,R2=0.99991。该法操作方便,结果准确,可用于含维C的药片中的维生素C的测定。This article USES the ultraviolet spectrophotometric method determination of vitamin C fructus forsythiae（vita-min C,maximum absorption wavelength of 243 nm,under the condition of the weak acidic pH=6 measuring absorbance. Linear regression equation：A= 0.0040＋0.0656＊C,R2=0.99991. It is easy to operate,accurate and can be used for containing the determination of vitamin C in vitamin C tablets.

关 键 词：维C银翘片 紫外分光光度法 维生素C的测定 

分 类 号：O657.7[理学—分析化学]