Reaction-based colorimetric signaling of Cu2+ ions by oxidative coupling of phenols with 4-aminoantipyrine
- Authors
- Kim, Hong Yeong; Lee, Hyo Jin; Chang, Suk-Kyu
- Issue Date
- Jan-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Cu2+ signaling; Colorimetry; Oxidative coupling; 4-Aminoantipyrine; Phenol; Quinoneimine dye
- Citation
- TALANTA, v.132, pp 625 - 629
- Pages
- 5
- Journal Title
- TALANTA
- Volume
- 132
- Start Page
- 625
- End Page
- 629
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/9971
- DOI
- 10.1016/j.talanta.2014.09.048
- ISSN
- 0039-9140
1873-3573
- Abstract
- A new Cu2+ -selective chromogenic probe system based on the oxidative coupling of phenols with 4-aminoantipyrine was developed. Cu2+ ions promoted facile coupling of phenols with 4-aminoantipyrine to yield quinoneimine dyes. Signaling with a number of phenols having no para-substituent, such as o-cresol and m-cresol, as well as p-chlorophenol having para substituent that could be expelled during the oxidation process was possible. The signaling of Cu2+ ions was not interfered by the presence of representative metal ions except for Al3+ ions. The possible interference from Al3+ ions was successfully removed by using fluoride ions as a masking agent. The phenol-4-aminoantipyrine probe system showed chromogenic Cu2+ signaling by prominent color change from colorless to pink with a detection limit of 8.5 x 10(-7) M. The signaling of Cu2+ ions in practical samples using tap water and simulated semiconductor wastewater was also tested. (C) 2014 Elsevier B.V. All rights reserved.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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