乳化技术在微量铅分析中的应用  

Application of emulsifying technology in the analysis of trace lead

作　　者：张维[1] 邓芳[1] 黄洁[1] 刘凤颖[1] 

机构地区：[1]中国石油吉林石化公司炼油厂,吉林吉林132022

出　　处：《化工科技》2007年第1期32-35,共4页Science & Technology in Chemical Industry

摘　　要：以司班-80（Span-80）与吐温-20（Tween-20）为复合乳化剂，将轻质石油产品分散成均匀的油水乳化液。然后，直接喷入空气-乙炔火焰中进行测定。本方法简单、快速，乳化液稳定时间长,回收率97％～103％，相对标准偏差在4％以内。本法测定结果与经典的络舍滴定法基本一致。Dissipate light petroleum into uniform oil-water emulsion using Span-80 and Tween-20 as complex emulsifier. Then , spray into air-ethyne flame , and determine. This method is simple and quickly . The steady time of emulsion is long . Reclaimable rate is within 97 %- 103%, Relative standard deviation is within 4 % . The determination result of this method is in accord with classical complex titration.

关 键 词：司班-80 吐温-20 络合滴定 乳化技术 

分 类 号：TQ423.92[化学工程]