基于N，N─二甲基苯胺与NO_2~－─对氨基苯磺酸重氮盐的偶联反应示波极谱法测定NO_2~－  

DETERMINATION OF NO_2￣-BY THE OSCILLOPOLA ROGRAPHY WITH COUPLED ACTION OF N, N-DIMETHYLANILINE AND NO_2￣- SULFANILATE DIAZO SALT

作　　者：孙国军[1,2] 田亚赛[1,2] 李雅枫 

机构地区：[1]本溪冶金高等专科学校 [2]本钢焦化厂

出　　处：《干旱环境监测》1996年第4期199-201,共3页Arid Environmental Monitoring

摘　　要：报道了利用Ｎ，Ｎ－二甲基苯胺为偶联试剂的Ｃｒｉｅｓｓ反应以示波极谱法测定ＮＯ＾－２的测试方法。在拟定的实验条件下，ＮＯ＾－２在４．０×１０＾－３－４．８×１０＾－１μｇ／ｍｌ范围内与极谱波波高呈良好的线性关系。环境水测定的相对标准偏差小于１％，回收率在９７％－１０１％之间。A new method determining No2-, the oscillopolarography with Griess action, was intreduced. In the method. N, N-dimethylaniline was taken for a coupling diazatizing reagent. In some experiment condition, NO2-form a good linear relation with its polarogram wave hight at range of 4. 0 × 10-3～4. 8 × 10-1μg/ml. In determination of water in environment,its relative standard error is below 1.5% .and the recovery ratio is 97-101%.

关 键 词：NO-2 偶联反应 示波极谱法 环境水 水质测定 

分 类 号：X132[环境科学与工程—环境科学] X832.02