水中苯胺类化合物检测试验剂盒的研制与筛选  

Development and Bolting of Reagent Kits for thd Determination of Aniline in Water

作　　者：杨晓芬[1] 赵美萍[2] 李元宗[2] 张新祥[2] 常文保[2] 

机构地区：[1]包头师范学院化学学院 [2]北京大学化学与分子工程学院

出　　处：《内蒙古石油化工》2005年第10期3-5,共3页Inner Mongolia Petrochemical Industry

摘　　要：本文筛选并研制出三种检测水中苯胺类化合物的试剂盒:邻甲氧基苯酚试剂盒、8-羟基喹啉试剂盒和1-萘酚试剂盒。邻甲氧基苯酚、8-羟基喹啉和1-萘酚分别在pH 9.2、12.2、12.2的氢氧化钠介质中与苯胺形成黄色、橙色和橙色偶氮化合物,它们的最大吸收波长分别位于450、480和491nm处,显然反应的摩尔吸光系数分别为3.036、4.235和4.146×104L.m o-l 1.cm-1,线性范围分别为0-5.6、0-4.8和0-4.0m g/L,检出限分别为8.0、0.0和12μg/L。这三种试剂盒用于水中苯胺类化合物的测定更加方便、快速、灵敏,线性范围更宽。这三种试剂盒应用于环境水样的测定,均获得了满意的分析结果。Theree new kinds of reagent kits for determination of aniline in water have been developed： guaiacol reagent kits, 8-hydroxy-quinoline reagent kits and 1-aphthol reagent kits. Aniline is coupled with guaiacol, 8 - hydroxy - quinoline and 1 - naphthol in alkaline medium （pH = 9. 2, 12. 2and 12. 2respectively）. The yellow, orange and orange azo compounds have maximum absorption at 450, 480 and 491nm respectively against reagent blanks. Molar extinction coefficients of the coloring reactions are respectively 3. 036, 4. 235 and 4. 146L. mo1^-1, cm^-1. Beer＇s law is valid up respectively to 0-5.6, 0-4.0 mg/L. The limits of detection are respectively 8.0,9.0 and 12μg/mL. Determination of aniline in water with the new reagent kits are more convenient, more rapidly and more sensitive. The new reagent kits have been successfully applied to determination of aniline in environmental water.

关 键 词：苯胺 试剂盒 8-羟基喹啉 1-萘酚 邻甲氧基苯酚 摩尔吸光系数 线性范围 废水 水污染化学 

分 类 号：X131.2[环境科学与工程—环境科学]