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A novel purine derivative‐based colorimetric chemosensor for sequential detection of copper ion and sulfide anion
Author(s) -
Jin Xinxin,
Chen Huilian,
Zhang Weixia,
Wang Biyi,
Shen Wei,
Lu Hongfei
Publication year - 2018
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4577
Subject(s) - chemistry , detection limit , selectivity , derivative (finance) , copper , ion , sulfide , inorganic chemistry , nuclear chemistry , chromatography , organic chemistry , financial economics , economics , catalysis
A purine derivative‐based colorimetric chemosensor (PHP) for the detection of Cu 2+ and S 2− is reported. PHP demonstrated a high selectivity and sensitivity for Cu 2+ through color change from colorless to yellow with a detection limit of 74.9 nM. The sensing mechanism of the PHP–Cu complex was confirmed using X‐ray crystal structure analysis and density functional theory calculation. Furthermore, the PHP–Cu complex can be used for selective detection of S 2− via competitive complexation of S 2− to Cu 2+ . Finally, PHP was successfully applied as a visible test strip for the detection of cupric ions in water.