Chromogenic and fluorogenic detection of cations in aqueous media by means of an acrylic polymer chemosensor with pendant Rhodamine-based dyes
Chromogenic and fluorogenic detection of cations in aqueous media by means of an acrylic polymer chemosensor with pendant Rhodamine-based dyes
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DOI：
10.1016/j.dyepig.2012.09.009
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发表时间：
2013-02-01
影响因子：
4.5
通讯作者：
Garcia, Jose M.
中科院分区：
文献类型：
--
作者：
El Kaoutit, Hamid;Estevez, Pedro;Garcia, Jose M.
一种不溶于水的有机化学传感器通过与亲水性共聚单体（乙烯基吡咯烷酮）的共聚，引入可聚合的甲基丙烯酰胺片段，从而产生一种水溶性丙烯酸共聚物，该共聚物能够在纯水介质中感知环境有毒阳离子。化学传感器是罗丹明B的衍生物，它对各种重离子，特别是汞（II），表现为荧光和显色传感器。Hg（II）的滴定曲线采用快速、廉价和广泛使用的技术，如荧光和紫外/可见光谱。此外，共聚物化学传感器的比色响应允许通过眼睛检测汞（II），因为当这种阳离子在水介质中与共聚物相互作用时，会产生粉红色。(C) 2012 Elsevier Ltd.所有权利
A water-insoluble organic chemosensor has been chemically modified by introducing a polymerizable methacrylamide moiety via copolymerization with a hydrophilic comonomer (vinylpyrrolidone), producing a water-soluble acrylic copolymer that is able to sense environmentally poisonous cations in pure aqueous media. The chemosensor is a derivative of Rhodamine B, which behaves as a fluorescent and chromogenic sensor toward various heavy cations, particularly Hg(II). Titration curves of Hg(II) were constructed using rapid, cheap, and widely available techniques, such as fluorescence and UV/Vis spectroscopies. Furthermore, a colorimetric response from the copolymer chemosensor permitted the detection of Hg(II) by eye due to the development of a pink color when this cation interacted with the copolymer in aqueous media. (C) 2012 Elsevier Ltd. All rights