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Synthesis and Application of a Naphthol‐Based Fluorescent Probe for Mercury(II) Detection
Author(s) -
Wu Xiaoming,
Duan Ning,
Yang Shaoxiang,
Tian Hongyu,
Sun Baoguo
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000076
Subject(s) - detection limit , mercury (programming language) , fluorescence , chemistry , tap water , analytical chemistry (journal) , methylene blue , trace amounts , buffer solution , chromatography , optics , photocatalysis , medicine , physics , alternative medicine , pathology , environmental engineering , computer science , programming language , engineering , catalysis , biochemistry
Abstract A sensitive analytical method for detecting trace levels of mercury(II) in diverse samples is desperately needed owing to its notoriously toxic. In this study, we have developed a novel fluorescent probe 2,2′‐((6‐hydroxynaphthalen‐2‐yl) methylene) bis (sulfanediyl) diacetic acid (Probe 1 ) for the sensitive detection of Hg 2+ . Probe 1 could detect Hg 2+ content in CH 3 CN/buffer (pH 6.0) solution. Probe 1 has a low detection limit (1.34 nM) and the detection range was 0–8 μM. The luminescent intensity of Probe 1 in a CH 3 CN/buffer (pH 6.0) solution increased with the concentration of Hg 2+ over two minutes, as observed under a 254 nm UV lamp. Furthermore, this phenomenon was observed using test papers of Probe 1 . Importantly, Probe 1 could detect Hg 2+ in wheat, mineral water, rice, tap water, and kelp samples.