微乳液增稳1-(2-吡啶偶氮)-2-萘酚光度法测定汽油中痕量抗静电剂环烷酸钴  

Spectrophotometric Determination of Cobalt With 1-(2-Pyridylazo)-2-naphthol in Microemulsion Media

作　　者：魏琴[1] 杜斌[1] 沈霞 回东冰 

机构地区：[1]山东建材学院应化系,济南250022

出　　处：《分析化学》1994年第11期1132-1134,共3页Chinese Journal of Analytical Chemistry

摘　　要：本文研究了以微乳液为介质时钴与PAN的显色反应,该体系在570nm处有最大吸收,其表观摩尔吸光系数为2.2×10~4L·mol^(-1)·cm^(-1),钴量在0～50μg/25ml范围内符合比耳定律。该法适用于汽油中环烷酸钴的测定。The color reaction has been studied for the determination of cobalt with mi-croemulsion and l-(2-pyridylazo)-2-naphthol, and its apparent molar absorptivity is 2.2 × 10~4L ·mol^(-1) ·cm^(-1) at 570 nm. Beer's law is obeyed in the range of 0-50 μg/25 ml for Co ( Ⅱ ). This method is suggested for the determination of cobalt naphthenate in the gasoline.

关 键 词：微乳液 汽油 环烷酸钴 PAN 光度法 

分 类 号：TE622.14[石油与天然气工程—油气加工工程]