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酒石酸钾钠的含量测定方法,一般都用氧化还原容量法如碘量法、高锰酸钾法、重铬酸钾法或铈量法等。前两种方法不但手续较繁,而且终点亦难掌握,容易引起误差;后两种方法要借助于电学仪器或光学仪器指示终点,不易推广。此外亦有将其炭化或灰化后,采用中和法进行分析的,但其手续繁复,准确度不易提高。还有用非水溶液滴定法的,该法不但要用大量有机溶剂,而且终点仍然不很明显。我们在实际试验中,一方面感到以上一些方法各有缺点;另一方面在它们的经验基础上,试用了间接的EDTA
Potassium tartrate content determination method, the general use of redox capacity method such as iodometry, potassium permanganate method, potassium dichromate method or the amount of cerium method. Not only the first two methods more complex procedures, but also difficult to grasp the end point, easily lead to errors; the latter two methods to use electrical or optical instruments to indicate the endpoint, not easy to promote. In addition, there are also carbonized or ashed, the use of neutralization method for analysis, but the complicated procedures, the accuracy is not easy to improve. There are also titration with non-aqueous solution, the law not only to use a large number of organic solvents, but the end is still not very clear. In the actual experiment, we feel that some of the above methods have their own disadvantages. On the other hand, based on their experience, we have tried indirect EDTA