新显色剂CAF测定水环境中微量铁  

Determination of Trace Fe in Water with Camphenal Fluorone

作　　者：殷乐[1] 廖贵红[1] 黄英[1] 童晓凯[1] 梁艳梅[1] 衷明华[1] 

机构地区：[1]江西师范大学化学学院,南昌市北京西路437号330027

出　　处：《光谱实验室》2003年第4期590-592,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：江西师范大学第三届创业基金资助项目

摘　　要：研究了在 HAc- Na Ac缓冲液中 ,有微乳液存在下 ,Fe3+与莰烯基荧光酮 (CAF)的显色反应 ,提出一个灵敏度高、选择性好、简便、快速测定微量铁的分光光度法。Fe( )与 CAF的络合物表观摩尔吸光系数ε=3.0 0× 10 4 L· mol-1· cm-1,有色络合物至少稳定 9h,铁含量在 1— 5μg/ 5 0 m L范围内符合比耳定律。该法测定水样中微量 Fe( ) 。In the medium of HAc-NaAc buffer solution,the color reaction of Fe(Ⅲ) with camphenal fluorone (CAF) in the presence of microemulsion was investigated.A spectrophotometric method of determining trace Fe was established.The method is sensitive,simple and quick.The complex molar absorptivity is 3.00×10 4L·mol -1·cm -1.The color complex is stable for at least 9h.Beer's law is obeyed in the range of 1—5μg/50mL for Fe.This method has been copplied to the determination of trace Fe(Ⅲ) in water with satisfactory results.

关 键 词：显色剂 CAF 测定 水环境 微量分析 铁 微乳液 莰烯基荧光酮 分光光度法 血液检验 

分 类 号：O661.1[理学—分析化学] R446.11[理学—化学]