巴氏合剂是医院治疗神经衰弱的常用制剂,其中苯甲酸钠咖啡因(安钠咖)的含量测定,一直采用中和法,但该法采用甲橙为指示剂,终点不易观察,且要使用乙醚,不太安全。为此,我们采用紫外分光光度法测定其含量。本法操作简便,灵敏度高。现将实验结果介绍如下。 Papanicum Mixture is commonly used in hospital treatment of neurasthenics, of which sodium benzoate caffeine (sodium benzoate) determination, has been using neutralization method, but the method uses methyl orange as an indicator of the end point is not easy to observe, and to use ether Not safe. To this end, we use UV spectrophotometry to determine its content. This method is simple, high sensitivity. Now the experimental results are described below.