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葡萄糖注射液含量测定通常有两种方法:即旋光法与碘量法。两种方法各有利弊:旋光法仪器价格高,基层医院不宜购买;碘量法操作复杂费时,不易掌握。自八○年以来,我们采用比重法直接测量葡萄糖溶液的比重,根据比重值即可得知葡萄糖溶液的含量。本法操作简便迅速,3～5分钟即可得出结果。适宜于药房快速含量测定。下面将实验方法和具体操作介绍如下: 1.原理与实验我们利用葡萄糖溶液随其浓度的升高而比重增加的原理,分别测定出25℃时不同浓度葡萄糖溶液的比重值。(见表1)。
There are usually two ways to determine the content of glucose injection: the optical rotation method and the iodometric method. The two methods have their own advantages and disadvantages: Polarimeter high prices, the primary hospital should not be purchased; Iodometric method is complex and time-consuming operation, not easy to grasp. Since 1980, we use the proportion of direct measurement of the proportion of glucose solution, according to the proportion of the value of the glucose solution can be informed. This method is simple and quick operation, 3 to 5 minutes to get the result. Suitable for rapid determination of pharmacy. The following experimental methods and specific operations are described below: 1. Principle and experiment We use the glucose solution with its concentration increases the proportion of the principle of increase, were measured at 25 ° C different concentrations of glucose solution specific gravity. (See table 1).