目前不少单位采用CL-1型袖珍折光仪测定葡萄糖溶液的含量,该法具有简便、迅速、取样少等优点,适用于医院制剂的快速测定。但此仪器构造简单,精度较低(据厂家介绍,精度为±0.5%,而我们使用的经验证明,常达不到上述精度)。同时,若按仪器说明书介绍的插入法计算结果,仍较麻烦。为了进一步提高速度和准确度,我们将测定方法做了如下改进。 At present, many units use the CL-1 Pocket Refractometer to determine the content of glucose solution. The method has the advantages of simple, rapid, less sampling, and is suitable for rapid determination of hospital preparations. However, this instrument has the advantages of simple structure and low accuracy (according to the manufacturer’s introduction, the accuracy is ± 0.5%, and the experience we use shows that it often can not reach the above precision). At the same time, if according to the instruction manual of the insert method to calculate the result, still more troublesome. In order to further improve the speed and accuracy, we made the following improvements to the measurement method.