山道年及其制剂的分析法,有抽出后称重法,水解后滴定法,抽出后用2、4二硝基苯肼沉淀法,比色法等,此等方法,或操作麻煩,或所得結果很难准确,尤其是宝塔糖等赋料甚多的合剂,更無較好的方法。根据Santavy氏的报告,在含水酒精溶液中,可用極譜法测定山道年;在山道年、酚酞、糖、乳糖及可可的混合物中,用酒精抽取后,以硫酸鋰为支持电解質,可直接测定 The method of analysis of mountain roads and their preparations includes weighing after extraction, titration after hydrolysis, precipitation using 2,4-dinitrophenylhydrazine after extraction, colorimetry, etc. These methods are either inconvenient or inconvenient. The results are difficult to be accurate, especially for peptacogates and other blends with a lot of material, but no better method. According to Santavy’s report, in the aqueous alcohol solution, the polar year can be measured by polarography; in the mixture of the mountain, phenolphthalein, sugar, lactose and cocoa, after extraction with alcohol, lithium sulfate is used as the supporting electrolyte and can be directly Determination