A novel Hg2+-selective fluorescent chemprobe based on thiooxorhodamine-B and β-C-glycoside

被引：12

作者：

Gu, Xiaomin ^{[1
]}

Fang, Zhijie ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, 200 Xiaolingwei St, Nanjing 210094, Jiangsu, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2017年 / 173卷

关键词：

beta-C-glycoside; Thiooxorhodamine B; Fluorescent probe; RATIOMETRIC DETECTION; RHODAMINE-B; MERCURY; HG2+; CHEMOSENSOR; IONS; CHEMODOSIMETER; PROBE; RECOGNITION; CU2+;

D O I：

10.1016/j.saa.2016.09.042

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this paper, two novel easily available probes based on rhodamine B and beta-C-glycoside were synthesized and characterized by H-1 NMR, C-13 NMR and elemental analysis. Sensor 1 exhibited very high sensitivity and selectivity toward Hg2+ over other metal ions, due to the opening of the Spiro ring in thiooxorhodamine B caused by Hg2+ through desulfurization. The binding analysis using Job's plot suggested 1:1 stoichiometry for the complexes formed for Hg2+ The fluorescent probe is pH independent in medium condition and common interferent ions do not show any interference with the Hg2+ determination. It is anticipated that 1 could be a good candidate probe and has potential application for Hg2+ determination. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：495 / 501

页数：7

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