Rapid detection of mercury (II) ions and water content by a new rhodamine B-based fluorescent chemosensor

被引：51

作者：

Hu, Jiwen ^{[1
]}

Yu, Xili ^{[1
]}

Zhang, Xin ^{[3
]}

Jing, Changcheng ^{[4
]}

Liu, Tingting ^{[2
]}

Hu, Xiaochun ^{[5
]}

Lu, Senlin ^{[1
]}

Uvdal, Kajsa ^{[3
]}

Gao, Hong-Wen ^{[2
]}

Hu, Zhangjun ^{[1
,3
]}

机构：

[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China

[2] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China

[3] Linkoping Univ, Div Mol Surface Phys & Nanosci, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden

[4] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England

[5] Tongji Univ, Shanghai East Hosp, Breast Canc Ctr, Shanghai 200092, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2020年 / 241卷

基金：

瑞典研究理事会; 美国国家科学基金会; 上海市自然科学基金;

关键词：

Mercury; Rhodamine B; Fluorescence; Water content; COLORIMETRIC SENSORS; HG2+; PROBE; BODIPY; HG(II);

D O I：

10.1016/j.saa.2020.118657

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A rhodamine B-based sensor (RS) was designed and synthesized by a combination of the spirolacton rhodamine B (fluorophore) and multidentate chelates (ionophore) with high affinity towards Hg2+. In the presence of Hg2+, the resulting red-orange fluorescence (under UV light) and naked eye red color of IDS are supposed to be used for quantitative and qualitative measurement of Hg2+. Further fluorescent titration and analysis demonstrate that RS can selectively detect Hg2+ within 1 s with a low limit of detection (LOD) of 16 nM in acetonitrile media, meanwhile, the association constant (K-a) was calculated to be 0.32 x 10(5) M-1. More importantly, the resultant complex (RSHg) of RS and Hg2+ has also been successfully applied to detect limited water content in acetonitrile solution. (C) 2020 Published by Elsevier B.V.

引用

页数：7

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