摘要
以Nafion修饰电极计时电位溶出法测定水中硝基苯。讨论了测定条件及富集和电极反应机理。方法的线性范围为2.0—31μmol/l,最低检出浓度为0.98μmol/l;8次平行测定的相对标准偏差为3.4％;回收率为94.8％—95.8％。
In this paper, conditions for determining nitrobenzene in water were proposed, and mechanisms of pre-concentration and electrode reaction at Nation modified electrode were discussed. A linear range was found between 2×10^(-6)-3.1×10^(-5)mol/l. The dection limit was 9.8×10^(-7)mol/l with 2 minute pre-concentration. The relative standard deviation of eight parallel determinations was 3.4%, and the recovery rate was 94.8%—95.8%.
出处
《上海环境科学》
CAS
CSCD
1993年第11期15-17,共3页
Shanghai Environmental Sciences
关键词
水质监测
计时电位法
硝基苯
Chronopotentiometric stripping analysis
Nitrobenzene
Environmental monitoring
Nation modified electrode
