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目前测定胆酸钠片含量的方法多用萃取重量法。但有关省、市地方标准在回流时间、硫酸的浓度与酸性程度等方面规定不尽相同。为此,我们对其测定条件进行了探索和改进。改进法的实验操作:职本品5片,洗去糖衣层,加15%氢氧化钠溶液30ml和乙醇1ml。加热回流1h,用20ml水冲洗冷凝管,趁热过
At present, the method of determining the content of cholecalciferol tablets is mostly extracted weight method. However, the provincial and municipal standards at the reflux time, the concentration of sulfuric acid and acid levels and other aspects of the provisions are not the same. For this reason, we have explored and improved its measurement conditions. Improve the experimental operation of the law: the job of 5, wash the sugar layer, add 15% sodium hydroxide solution 30ml and ethanol 1ml. Heat reflux 1h, wash the condenser with 20ml water, hot