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枸椽酸钾溶液是临床常用的利尿和补钾药物.常规测定其含量所用方法比较复杂,由于本品具有一定的折光性,采用折光测定法测其含量.实验证明它的浓度与折光率呈直线相关(如图1),经离子交换法试验对照,认为本法简便、易行、可靠、现将方法介绍如下:一、仪器和试剂CARLZEIS_2 JENA1型阿贝氏折射仪(西德)药用枸椽酸钾(北京化工厂,批号831112)二、方法和步骤(一)F值的求得(F值为溶液浓度每增加1%其折光率的增加数)1.精密配制8.5～12.0%浓度的8种枸椽酸钾溶液.
Potassium citrate solution is commonly used in clinical diuretic and potassium medicine routine determination of the content of the method used is more complex, due to the product has a certain degree of refraction, using refractive index measurement of its content experiments show that its concentration and refractive index was Linear correlation (Figure 1), the ion exchange method test control, that this method is simple, easy and reliable, the method described below: First, instruments and reagents CARLZEIS_2 JENA1 Abbe refractometer (West Germany) Medicinal Methods and Procedures (I) F Value Calculation (F value is the increase of refractive index for every 1% increase in solution concentration) 1. Precision preparation 8.5-12.0% 8 concentrations of potassium citrate solution.