不同取代基卟啉荧光探针对痕量Cu^(2+)和Zn^(2+)离子的识别研究  

Study on recognition of trace Cu^(2+) and Zn^(2+) ions by porphyrins containing different peripheral substituents

作　　者：吕向菲[1] 胡南江[2] 赵冉[1] 汤伟[3] 马宏瑞[1] 张利军[4] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]陕西科技大学轻工与能源学院,陕西西安710021 [3]陕西科技大学电气与信息工程学院,陕西西安710021 [4]天水师范学院物理与信息科学学院,甘肃天水741001

出　　处：《陕西科技大学学报（自然科学版）》2013年第5期84-88,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅科研计划项目(2013JK0660);陕西省科技厅自然科学基金项目(2013JQ2026);陕西科技大学博士科研启动基金项目(BJ11-19)

摘　　要：卟啉类化合物具有优良的光物理性质,是一种具有高度敏感性和选择性的荧光探针.将含有酯基和羟基的卟啉分别用于水中痕量Cu2+及Zn2+的检测,通过不同体系下荧光信号的强度变化对重金属离子进行识别.研究结果表明,酯基卟啉和羟基卟啉都能对Cu2+及Zn2+的浓度变化做出线性响应,酯基卟啉为荧光猝灭型探针,而羟基卟啉为荧光增强型探针,酯基卟啉对铜离子的选择性高于羟基卟啉.Porphyrin compounds with excellent photophysical properties, is a highly sensitive and selective fluorescent probes. The porphyrins that contain the ester group or hydroxyl group are used to determine trace concentration of Cu2＋ and Zn2＋ in water, thus the metal i ons can be identified through the intensity variations of fluorescence signal in different condi- tions. The results indicated that the ester porphyrin is fluorescence quenching probe while the hydroxy porphyrin is fluorescence enhancement probe, and also show that although both the ester porphyrins and hydroxy porphyrins can show linear response to the changes in the con- centration of Cu2＋ and Zn2＋ , the ester porphyrin selectivity for copper ions is higher thanthat of hydroxyl-porphyrin.

关 键 词：卟啉 荧光探针 痕量重金属离子识别 

分 类 号：O611.5[理学—无机化学]