摘要
对异烟酸-吡唑啉酮光度法测定水和废水中氰化物的显色液进行改进,试验结果表明精密度RSD<5%,加标率回收率为92.0%～105%,满足分析要求。
It improve that determination of cyanide in water and wastewater by isonicotinic acid-pyrazolone spectrophotometric methods in this paper.Under the premise of without changing the other steps,with deionized water instead of dimethylformamide as worthy of the pyrazolone solution and iso-nicotinic acid solution as a chromogenic agent.The results showed that：The new method improved the precision RSD 5%,plus standard rate of recovery was 92.0% ～ 105.8%.Electroplating wastewater and standard sample by comparison of the tests showed.The improved methods and standard methods for the determination of the same sample was no significant difference.To meet the monitoring and analysis requirements.
出处
《中国环境监测》
CAS
CSCD
北大核心
2010年第5期35-36,共2页
Environmental Monitoring in China
