摘要
研究了以４－氨基安替吡啉（４－ＡＰＰ）为显色剂，用一阶导数分光光度法直接测定炼油厂污水中微量苯胺的最佳条件。在ｐＨ５．５的ＨＣｌ－（ＣＨ２）６Ｎ４缓冲溶液中，４－ＡＡＰ与苯胺生成的配合物有较高的灵敏度，加入ＯＰ乳化剂显著地增加了其稳定性，用导数法的零交技术消除了苯酚等的干扰。本法的线性范围在０～４０μｍ／５０ｍｌ，检出限为０．０７μｍ／ｍｌ，加标回收率在９５％～１０９％之间。
method is proposed for the direct determination of aniline content in refinery waste water by 4AAP derivative spectrophotometryInterferences such as phenol etccan be eliminated by the derivative zerocrossing technique,so that no pretreatment procedure is necessaryA linear calibration curve was obtained in 0～40μg/50ml with a detection limit of 007μg/ml and a recovery of 95%～109%The proposed method has been applied successfully to the determination of aniline content in refinery waste water
出处
《石油化工》
CAS
CSCD
北大核心
1998年第8期590-592,共3页
Petrochemical Technology
关键词
炼油厂
污水
苯胺
分光光度法
测定
4aminoantipyrine,aniline,derivative spectrophotometry,emulsifier OP,refinery waste water,direct determination
