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Cinnamaldehyde‐Based Chemosensor for Colorimetric Detection of Cu 2+ and Hg 2+ in a Near‐Perfect Aqueous Solution
Author(s) -
Cho Hanna,
Chae Ju Byeong,
Kim Cheal
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201900199
Subject(s) - cinnamaldehyde , chemistry , aqueous solution , detection limit , carbohydrazide , nuclear chemistry , tap water , ion , orange (colour) , analyte , mercury (programming language) , chromatography , medicinal chemistry , organic chemistry , environmental engineering , engineering , catalysis , food science , computer science , programming language
A cinnamaldehyde‐based colorimetric chemosensor TAA (N′‐((1E,2Z)‐3‐(4‐(dimethylamino)phenyl)allylidene)thiophene‐2‐carbohydrazide) was newly developed. TAA can detect Cu 2+ and Hg 2+ ions by different color changes from pale yellow to deep yellow and orange, respectively, in aqueous media. TAA differently binds to Cu 2+ as a 1:1 ratio and Hg 2+ as a 2:1 ratio. The detection limits towards both analytes turned out to be 0.08 μM for Cu 2+ and 0.01 μM for Hg 2+ . Moreover, TAA could successfully quantify Cu 2+ and Hg 2+ in tap and drinking water. The detection processes of TAA towards Cu 2+ and Hg 2+ were demonstrated by using DFT calculations.