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水溶性大分子汞离子荧光-比色探针RhBH-P(VP-co-GMA)的合成与性能
引用本文:姜思思,苟超,吴海强,王宝清,罗静,刘晓亚. 水溶性大分子汞离子荧光-比色探针RhBH-P(VP-co-GMA)的合成与性能[J]. 医学教育探索, 2011, 24(4)
作者姓名:姜思思  苟超  吴海强  王宝清  罗静  刘晓亚
作者单位:江南大学化工与材料工程学院,江苏 无锡 214122;江南大学化工与材料工程学院,江苏 无锡 214123;江南大学化工与材料工程学院,江苏 无锡 214124;江南大学化工与材料工程学院,江苏 无锡 214125;江南大学化工与材料工程学院,江苏 无锡 214126;江南大学化工与材料工程学院,江苏 无锡 214127
基金项目:国家自然科学基金(20704017); 教育部中央高校自主科研计划青年基金(JUSRP11108)
摘    要:采用活性基团修饰法,通过罗丹明B酰肼(RhBH)与乙烯基吡咯烷酮-甲基丙烯酸缩水甘油酯共聚物(P(VP-co-GMA))侧链上环氧基团的开环反应,制得一种键合有罗丹明B酰肼的水溶性聚合物RhBH-P(VP-co-GMA)。在水溶液中,该聚合物本身无色且无荧光,加入汞离子后,罗丹明的螺环结构打开,出现显著的荧光增强和颜色变红,实现了在水溶液中对汞离子的“关开”荧光检测和裸眼检测。在此条件下,其他共存离子没有明显响应。研究表明:该聚合物是一种高选择性的Hg2+探针,可以实现水溶液中的汞离子检测。

关 键 词:汞离子;罗丹明B酰肼;荧光比色探针;水溶性聚合物

Synthesis and Photophysical Behaviors of Water Soluble Copolymer as Chemosensor for Hg2+ in Aqueous Solution
JIANG Si-si,GOU Chao,WU Hai-qiang,WANG Bao-qing,LUO Jing and LIU Xiao-ya. Synthesis and Photophysical Behaviors of Water Soluble Copolymer as Chemosensor for Hg2+ in Aqueous Solution[J]. Researches in Medical Education, 2011, 24(4)
Authors:JIANG Si-si  GOU Chao  WU Hai-qiang  WANG Bao-qing  LUO Jing  LIU Xiao-ya
Affiliation:School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China;School of Chemical and Material Engineering, Jiangnan University, Wuxi 214123, Jiangsu, China;School of Chemical and Material Engineering, Jiangnan University, Wuxi 214124, Jiangsu, China;School of Chemical and Material Engineering, Jiangnan University, Wuxi 214125, Jiangsu, China;School of Chemical and Material Engineering, Jiangnan University, Wuxi 214126, Jiangsu, China;School of Chemical and Material Engineering, Jiangnan University, Wuxi 214127, Jiangsu, China
Abstract:A novel water soluble copolymer RhBH-P(VP-co-GMA) bearing rhodamine B hydrazine (RhBH) was prepared by ring opening reaction between RhBH and a water soluble copolymer P(VP co GMA) which was synthesized by radical polymerization of N-vinyl pyrolidone (VP) and glycidyl methacrylate (GMA). Upon addition of Hg2+, the spirocyclic ring of RhBH-P(VP-co- GMA) was opened and a significant fluorescence enhancement as well as colorimetric change was observed, which allowed to detect Hg2+ in aqueous solution by both fluorescence technique and naked eye. In addition, the feeding of other transition metal ions has no interference, which shows RhBH-P(VP-co-GMA) is a highly selective macromolecular probe for detection of Hg2+ in aqueous solution.
Keywords:mercury ion   rhodamine B hydrazine   fluorescence and colorimetric probe   water soluble polymer
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