This paper introduced the indirectdetermination of polyphosphate in laundry powder by potentiometric titration, the method is featured of simple, rapid and reliable.
用强酸分解洗衣粉中的聚磷酸盐，以电位滴定法间接测定其中的聚磷酸盐含量。
2
The polarographic catalytic wave method for the indirectdetermination of sulfate radical was introduced. The influence factors and the experimental conditions had been discussed.
介绍了一种用极谱催化波间接测定硫酸根的方法，讨论了实验条件和干扰因素。
3
Using equilibrium shift of buffer solution, indirectdetermination of a number of ionic even molecular components by FIA in combination with potentiometric detection can be realized.