摘要
本文研究了用TCPO-H_2O_2发光体系对氨进行测定.结果表明,当pH=10.3.OPA浓度为10mmol·l^(-1).氨浓度在0—6mg·l_(-1)时.其浓度和发光强度有良好的线性关系(相关系数为0.998).本法的最低捡出限为2ng·l^(-1),可用于实际雨水样品的测定.测定结果还表明;本法具有灵敏度高、精度高、线性范围宽、干扰少等优点.适用于大批量分析及连续自动监测分析.
This paper has described a method for determination of ammonia in rain by using TCPO-H2O2 chemiluminescence system. Under the optimum experimental condition, the standard curve linear in the concentration range up to 6mg · 1-1, with r=0. 998 the correlation coefficient relative standard deviation of 1. 7-2. 9%, and the detection limit of 2ng·l-1.This method has many advantages over conventional motheds due to its simplicity, rapidity and high sample through-put.
出处
《环境化学》
CAS
CSCD
北大核心
1995年第5期460-465,共6页
Environmental Chemistry
关键词
氨
化学发光法
雨水
测定
ammonia, chemiluminescence, rain.
