Synthesis and application of a novel reactive Coumarin-derived probe for the determination of Hg2+ in real samples

被引：13

作者：

Tian, Qingqin ^{[1
]}

Hong, Tong ^{[1
]}

Zhao, Zhigang ^{[1
,2
]}

Shi, Zhichuan ^{[1
,2
]}

机构：

[1] Southwest Minzu Univ, Sch Chem & Environm, Chengdu 610041, Peoples R China

[2] Southwest Minzu Univ, Key Lab Gen Chem, Natl Ethn Affairs Commiss, Chengdu 610041, Peoples R China

来源：

INORGANICA CHIMICA ACTA | 2022年 / 537卷

关键词：

Coumarin; Fluorescent probe; Dithioacetal; Mercury ion; Synthesis; Reactive; TURN-ON PROBE; FLUORESCENT-PROBE; MERCURY; HG(II); SENSOR; STRATEGY; CADMIUM; IONS; LEAD;

D O I：

10.1016/j.ica.2022.120937

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel reactive fluorescent probe 6-(bis(butylthio)methyl)-7-hydroxy-4,8-dimethylcoumarin (L) has been synthesized from 2-methylresorcinol. The structure was characterized by NMR, ESI-MS and elemental analysis. The fluorescence intensity of the probe was very strong in solution, but the fluorescence is quenched after adding Hg2+ to the reaction. Ultraviolet-visible absorption spectrum and fluorescence emission were used to test the probe L in identifying Hg2+. The results show that in the pH range of 4 to 9, the probe exhibited high selectivity, high senstivity and antiinterference, the limit of detection as low as 23.09 x 10(-9) mol/L, which has good application prospects for the rapid dection of mercury ions in real samples.

引用

页数：7

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