O/W微乳液对α-萘酚光度法测定苯胺的增敏作用  

Sensitizing Effect of O/W Microemulsion on Determination of Aniline by Spectrophotometry Using α-naphthol

作　　者：徐英[1] 王桂清[1] 刘敏娜[1] 陈灵谦[1] 

机构地区：[1]湘潭大学化学学院,湖南湘潭411105

出　　处：《湖南工程学院学报（自然科学版）》2004年第4期77-79,88,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：研究了由Tween80/苯/正丁醇/水组成的O/W微乳液对α-萘酚光度法测定苯胺的影响,结果表明,该微乳液体系对测量有明显的增敏作用,摩尔吸光系数ε=4.6×104dm3.mol-1.cm-1,与用水做介质的体系相比,灵敏度增加了28%.线性范围由0—3.5mg.dm-3增加到0—4.3mg.dm-3.还对增敏机理进行了讨论.Sensitizing effect of O/W microemulsion on determination of aniline by spectrophotometry using-naphthol is studied. The sensitivity of the procedure in Tween 80/benzene/n-butyl alcohol / water O/W microemulsion medium (ε=4.6×10~4dm3.mol^(-1).cm^(-1).) is higer than that water medium . Beer's law is obeyed in the range of 0-4.3 mg dm^(-3) for-naphthol . The mechanism of sensitizing effect is also investigated.

关 键 词：Α-萘酚 苯胺 增敏作用 分光光度法 O/W微乳液 

分 类 号：TQ226.27[化学工程—有机化工]