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炎立消胶囊是一种具有清热解毒、消炎止痢功用的中成药。治疗上呼吸道感染;急性菌痢、肠炎疗效尤佳。本实验以原儿茶酸为对照品,以该药中主要有效成分3、4——二羟基苯甲酸,3、4-二羟基苯乙醇为测定指标,利用其均具有邻二酚羟基结构,可以与钼离子络合,产生黄颜色,在498nm处有最大吸收的原理进行测定的。实验部分一含量测定 1.标准曲线的制备精取干燥至恒重的原儿茶酸10.0毫克,置10毫升容量瓶中加95％乙醇5毫升使之溶解,加1N盐酸5毫
Yanlixiao capsule is a proprietary Chinese medicine with heat-clearing, detoxifying and anti-inflammatory effects. Treatment of upper respiratory tract infections; acute bacillary dysentery, enteritis is particularly effective. In this experiment, protocatechuic acid was used as a reference substance, and its main active components 3,4-dihydroxybenzoic acid and 3,4-dihydroxyphenylethanol were used as the determination indexes, and they all had o-diphenol hydroxyl structure. It can be complexed with molybdenum ions to produce a yellow color, measured on the principle of maximum absorption at 498 nm. Experimental Part I Determination 1. Preparation of a standard curve: Take 10.0 mg of protocatechuic acid from dry to constant weight, and dissolve it by adding 5 ml of 95% ethanol to a 10 ml volumetric flask and add 1N hydrochloric acid to 5 milliliters.