一种用于检测铁离子的化学传感器  

A Chemosensor for Detection of Iron(Ⅲ)

作　　者：王冬香[1] 吴根华[1] 王培三[1] 汪竹青[1] 

机构地区：[1]安徽师范大学化学与材料科学学院

出　　处：《安庆师范学院学报（自然科学版）》2008年第2期48-49,59,共3页Journal of Anqing Teachers College(Natural Science Edition)

基　　金：安徽省教育厅自然科学基金项目资助(2002KJ201)

摘　　要：铁是维持生命的主要物质,是制造血红素和肌血球素、促进维生素B族代谢的必要物质,因此研究能用于铁离子检测的化学传感器具有重要意义。本文通过有机合成方法得到了一个新的化学传感器Ⅰ,该化学传感器对铁离子具有紫外可见光谱响应信号。优化反应的条件,在HAc-NaAc缓冲的CH3CN/H2O溶剂体系中,Fe3+与Ⅰ配位形成1:1的配合物,该配合物在500 nm以上有紫外可见吸收,且Ⅰ对Fe3+的检测达到了微摩尔水平。Iron is essential for the survival of all living organisms, which is an indispensable element to produce haemachrome and myoglobin, as well as to promote the metabolizing of vitamin 13. Therefore, development of detection method for monitoring the level of iron is necessary and indispensable. A chemosensor Ⅰ was synthesized, which displayed selective Fe^3＋ amplified absorbance. Under the optimized conditions, in acetonitrile aqueous buffer solution （HAc- NaAc）, Ⅰ and Fe^3＋ formed a 1：1 metal-ligand complex. Chemosensor Ⅰ showed absorbance enhancement response to Fe^3＋ above 500 nm , and also Ⅰ can detect micromolar level of Fe^3＋ .

关 键 词：化学传感器 铁离子(Ⅲ) 吸收光谱 

分 类 号：O65[理学—分析化学]