文档介绍：2010,19(1) 福建分析测试 Fujian Analysis & Testing 83
示波极谱法快速测定水样中微量镰
孙对
(安徽省地质实验研究所，安徽 谷肥230001)
摘要：’BQ?电解质中，繰和丁二酮厉在-1060mV()处产生灵敏的络合吸附波，峰电流与银的浓 -J~25ng/mU?i围内呈线性关系，• 样中微就铢，结果满意。
关键词：牒;络合吸附波;示波极谱法;水样
中图分类号：：A文章编号:1009-8143(2010)01-0083-03
Rapid Determination of Trace Nickel in Water by Oscillopolarography
Sun li
(Institute of Geological Experiment of Anhui Province, Hefei 23DOO1 .Chirm )
Abstract: In the solution of NgBQ/ )tthc sensitive polarographic complex adsorptive wave of Ni(D)-dimethylglyoxime (DMG) has been investigated in detail. The penk |x)：entiaJ was at -1060 mV() on oscillopolarograph・ The concentration of nickel was proportional to the peak height of the second order derivative wave in the range of x 10心 ~ 25 ji g/mL The detection limit was The method was simple, rapid and sensitive, and has been used to determine trace nickel in water.
Keywords: Nickel; Polarographic complex adsoq)tion wave; Oscillopolarography; Water
2010,19(1) 福建分析测试 Fujian Analysis & Testing 83
2010,19(1) 福建分析测试 Fujian Analysis & Testing 83
繰是人体中必需的微虽元素，但吸入过就的镇 会造成损伤。由于银广泛应用在工业，通常会污染 工业区周边的土壤和水质。因此，近年来谋的测定 受到重视。微量鎳的测定方法有很多II,主要有分 光光度法、原子光谱法、荧光法等。用示波极谱法测 定,仪器试剂简单,操作快速简便，结果满意。
1实验部分
JP-2D型示波极谱仪(成都仪器厂);Ni( n )标 准储备液(1000 Fig/mL)：准确称取光谱纯