流动注射化学发光测定水中对氨基酚  

Determination of p-aminophenol in water by flow-injection chemiluminescence analysis

作　　者：张守花[1] 张立科[2,3] 原思国[3] 

机构地区：[1]鹤壁职业技术学院化工与材料工程学院,河南鹤壁458030 [2]许昌学院化学化工学院,河南许昌461000 [3]郑州大学化工与能源学院,河南郑州450001

出　　处：《应用化工》2013年第5期929-931,943,共4页Applied Chemical Industry

基　　金：河南省教育厅自然科学研究资助计划项目(2010B150031);许昌学院科研基金项目(2011B022);许昌学院优秀青年骨干教师资助项目

摘　　要：基于对氨基酚对鲁米诺-盐酸羟胺-钴离子化学发光体系有增敏作用,建立起测定对氨基酚的新方法,对实验条件进行了优化。结果表明,最优实验条件为:转速30 r/min,鲁米诺浓度4.16×10-6mol/L,NaOH浓度0.10 mol/L,盐酸羟胺浓度4.548×10-5mol/L,钴离子浓度4.072×10-6mol/L。在最优条件下,方法的检出限为1.0×10-7mol/L,线性范围为1.0×10-7～2.0×10-6mol/L,在对氨基酚溶液浓度为2.0×10-7mol/L时进行了9次平行测定,相对标准偏差(RSD)为2.5%,精密度良好。本方法可应用于自来水及河水中对氨基酚的检测。A new chemiluminescence method was presented for the determination of p-aminophenol based on its sensitization on the luminol-HONH3 C1-Co2＋ system. The results showed that the optimal experimental conditions were as follows：the concentration of NaOH 0.10 mol/L, hydroxylamine hydrochloride concentration were 4. 548 × 10-5 mol/L and Co2＋ concentration were 4. 072× 10-6mol/L. Under the optimal conditions, the detection limit of the method is 1.0 ×10 -7 mol/L, the linear range of 1.0 × 10 -7 -2.0 × 10-6 mol/L,when the p-aminophenol concentration were 2.0 × 10-7 mol/L to 9 parallel determinations, RSD = 2.5% and good precision. The method can be applied to tap water and river water in the detection of aminophenol.

关 键 词：流动注射 化学发光 鲁米诺 对氨基酚 水 

分 类 号：O657.3[理学—分析化学]