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A colorimetric chemosensor for sensitive and selective detection of copper(II) ions based on catalytic oxidation of 1-naphthylamine.
- Source :
- Analyst; 7/21/2023, Vol. 148 Issue 14, p3306-3311, 6p
- Publication Year :
- 2023
-
Abstract
- Rapid on-site detection of copper(II) ions (Cu<superscript>2+</superscript>) with high sensitivity and selectivity is of great significance in the safety monitoring of drinking water and food. Colorimetric detection is a robust fast determination method with the main drawback of low sensitivity. Herein, we developed a colorimetric chemosensor based on a colored polymer product. Via a Cu–Fenton mechanism, 1-naphthylamine (α-NA) was oxidized by H<subscript>2</subscript>O<subscript>2</subscript> and brownish-red poly(1-naphthylamine) (PNA) was produced. The obtained Cu<superscript>2+</superscript> sensor showed a linear response from 0.05 μM to 7 μM, with a detection limit of 62 nM. Our findings expanded chromogenic reaction types for colorimetric detection. [ABSTRACT FROM AUTHOR]
- Subjects :
- COPPER
CATALYTIC oxidation
CHEMORECEPTORS
IONS
DRINKING water
DETECTION limit
Subjects
Details
- Language :
- English
- ISSN :
- 00032654
- Volume :
- 148
- Issue :
- 14
- Database :
- Complementary Index
- Journal :
- Analyst
- Publication Type :
- Academic Journal
- Accession number :
- 164797715
- Full Text :
- https://doi.org/10.1039/d3an00536d