阻抑动力学光度法测定痕量苯胺  

Inhibitory kinetic spectrophotometric determination of trace aniline

作　　者：唐冬秀[1] 宋和付[1] 李晓湘[1] 

机构地区：[1]湘潭工学院化学工程系,湖南湘潭411201

出　　处：《工业水处理》2004年第1期50-51,共2页Industrial Water Treatment

摘　　要：在pH4.5邻苯二甲酸氢钾-氢氧化钠缓冲溶液存在下,痕量苯胺对高碘酸钾氧化孔雀绿褪色反应有强烈的抑制作用,据此建立了阻抑动力学光度法测定痕量苯胺的新方法。方法检出限为0.38μg/L,测定范围为0.0～9.2μg/L。此法用于废水中苯胺的测定,结果令人满意。In the presence of potassium biphthalate-sodium hydroxide buffer solution at pH4.5 ,trace aniline in-hibitsstrongly the fading reaction of malachite green by oxidizing with potassium permanganate.Based on thisstudy ,a novel inhibitory kinetic-spectrophotometric method hasbeen developed for the determination of trace aniline.The experimental resultsshow that the detection limit for aniline is0.38μg/L ,the linear range of the determination is0.0～9.2μg/L ,The method hasbeen applied to the determination of trace aniline in wastewater with satisfactory results.

关 键 词：阻抑动力学光度法 苯胺 废水监测 邻苯二甲酸氢钾 氢氧化钠 高碘酸钾 

分 类 号：X832[环境科学与工程—环境工程] O661.1[理学—分析化学]