摘要
应用方波溶出伏安法同时测定水体中几种微量重金属离子浓度,在浓度为8.0g/L的氯化铵底液中,合适的条件和参数下,Mn2+、Zn2+、Hg2+均灵敏地产生溶出峰。峰电位分别为:-1.94V、-1.05V、1.31V。此方法灵敏度高,检测限低,重现性好,适合进行微量重金属离子的快速同时检测。
Square wave stripping voltammetry is used to determinate the concentration of several traces of heavy mental ions simultaneously in water. In the concentration of 8.0g/L ammonium chloride solution （NH4Cl） and appropriate parameters and conditions,the stripping peaks of Mn^2＋, Zn^2＋ and Hg^2＋ all appear sensitively. Spike potential are as follows： - 1. 94V, -1.05V,1.31V. The method is sensitive and has a low analytic limitation ,and the repeatability is well. It is suited to test the traces of heavy mental ions quickly and synchronously.
出处
《山东化工》
CAS
2015年第2期56-58,共3页
Shandong Chemical Industry
关键词
方波溶出伏安法
同时测定
重金属
微量
square -wave stripping voltammeter
simultaneous deffermination
heavy mental
trace
