文献类型：期刊文献

英文题名：Rapid screening plate of cadmium-chelating activity based on a quaternary complex of Cd(II)-Chrome azurol S CAS-2,2′-dipyridyl dipy-cetylpyridinium bromide CPB

作者：Iddrisu, Lukman[1];Meng, Haimei[1];Mkulo, Evodia Moses[2];Danso, Felix[4];Ibrahim, Salifu[2];Zhang, Shumei[1];Su, Jiesen[1];Fang, Zhijia[1];Wu, Bin[1];Deng, Qi[1];Sun, Lijun[1];Gooneratne, Ravi[3]

机构：[1]Guangdong Ocean Univ, Coll Food Sci & Technol, Guangdong Prov Engn Technol, Guangdong Prov Key Lab Aquat Prod Proc & Safety,Ke, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Coll Fisheries, Guangdong Prov Key Lab Pathogen Biol & Epidemiol A, Zhanjiang, Peoples R China;[3]Lincoln Univ, Dept Wine Food & Mol Biosci, Lincoln 7647, Canterbury, New Zealand;[4]Guangdong Ocean Univ, Dept Vet Med, Zhanjiang 524088, Peoples R China

年份：2025

卷号：705

外文期刊名：ANALYTICAL BIOCHEMISTRY

收录：SCI-EXPANDED(收录号：WOS:001504789000001)、、EI(收录号：20252218533338)、Scopus(收录号：2-s2.0-105006878497)、WOS

基金：This work was supported by the National Natural Science Foundation of China (No. 32172215) , the Guangdong Basic and Applied Basic Research Foundation (No. 2021A1515012443) , and The Special Project of Science and Technology Development of Zhanjiang (No. 2022A01014) .

语种：英文

外文关键词：CAS detection plate; Cadmium; Chelation; Rapid detection; Heavy metals

外文摘要：Heavy metal ions, such as Cd, Hg, Pb, and As, tend to persist in soil without natural degradation and can be absorbed by crops, leading to the accumulation of agricultural products that pose a significant threat to human health. However, the development of a rapid and efficient technique for identifying heavy metals in agricultural products is essential to ensure health and safety. With the knowledge of the extent of damage caused by heavy metals, it becomes imperative to detect the presence of cadmium in the soil, water, and the environment. This study introduces a novel plate approach for quick and precise colorimetric detection of cadmium ions using the Cd(II)-Chrome Azurol S CAS-2,2 '-dipyridyl dipy-Cetylpyridinium Bromide CPB quaternary complex. Our innovative method has shown that at a reaction solution pH of 11, the optimal concentration ratio is CAS (5 x 10-3 M): dipy (0.1 M): CPB (1.0 x 10-3 M) = 4 mL: 1 mL: 1 mL. The most significant fading alert was observed when the ethylenediaminetetraacetic acid (EDTA) chelator was added dropwise to the CAS detection plate, indicating strong chelation of Cd by EDTA. This laboratory-based study established a foundation for future applications in real environmental sample analysis.