The Development of a Selective Colorimetric Sensor for Cu<sup>2+</sup> and Zn<sup>2+</sup> in Mineral Supplement with Application of a Smartphone Paper-Based Assay of Cu<sup>2+</sup> in Water Samples

The Development of a Selective Colorimetric Sensor for Cu<sup>2+</sup> and Zn<sup>2+</sup> in Mineral Supplement with Application of a Smartphone Paper-Based Assay of Cu<sup>2+</sup> in Water Samples

Herein, we developed a colorimetric method for the determination of Cu<sup>2+</sup> and Zn<sup>2+</sup> using NBD-G as a novel selective metal sensor. NBD-G was easily synthesized by a nucleophilic substitution reaction between 4-chloro-7-nitro-2,1,3-benzoxadiazole (NBD-Cl) a...

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Bibliographic Details
Main Authors: Mahmoud El-Maghrabey, Shōta Seino, Naoya Kishikawa, Naotaka Kuroda
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Sensors
Subjects:
copper(II)
zinc(II)
NBD-Cl
Girard’s Reagent P
paper-based assay
mineral supplements
Online Access:https://www.mdpi.com/1424-8220/24/23/7844
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