表面活性剂在医药领域的应用极为广泛，因此，对其进行分析与测定显得尤为重要，季胺盐类阳离子表面活性剂的分析，常见有直接两相滴定和电位滴定等方法[1]。前者换作甚为繁琐．且消耗大量有机溶剂；后者虽然准确度高，但需作图求终点体积，手续也很繁，而采用交流示波极话摘定 Surfactants are widely used in the field of medicine. Therefore, it is very important to analyze and determine them. The analysis of quaternary ammonium salt cationic surfactants is common in direct two-phase titration and potentiometric titration [1]. The former change is very complicated. And consume a large amount of organic solvents; the latter although the accuracy is high, but the need for mapping to seek the end volume, the procedure is also very complicated, and the use of AC oscilloscope polar words finalized