Cadmium ions mediated turn-on electrogenerated chemiluminescence of ZnS nanoparticles for highly selective cadmium detection in seafood
文献类型： 外文期刊
作者： Chen, Shan 1 ; Zheng, Yuhao 2 ; Zhang, Biqi 3 ; Huang, Zongxiong 4 ; Xu, Guohailin 5 ; Chen, Jingwen 1 ; Qian, Mingyan 1 ; Sun, Hao 2 ; Chen, Jinghu 2 ; Liu, Jun 1 ; Sun, Jian-Jun 3 ; Fang, Yimin 2 ;
作者机构： 1.Minist Agr & Rural Affairs, Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Key Lab Protected Agr Engn Middle & Lower Reaches, Nanjing 210014, Jiangsu, Peoples R China
2.Nanjing Med Univ, Sch Pharm, Key Lab Cardiovasc & Cerebrovasc Med, Nanjing 211166, Peoples R China
3.Fuzhou Univ, Coll Chem, Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Saf, Fuzhou 350108, Fujian, Peoples R China
4.Fujian Fiber Inspect Ctr, Natl Text & Garment Qual Supervis Testing Ctr, Fuzhou 350026, Fujian, Peoples R China
5.Jiangsu Univ, Inst Agr Engn, Zhenjiang 212001, Peoples R China
关键词： Electrogenerated chemiluminescence; Cation exchange; Cadmium ion; ZnS nanoparticles; Food samples
期刊名称：ANALYTICA CHIMICA ACTA （ 影响因子：6.2； 五年影响因子：5.9 ）
ISSN： 0003-2670
年卷期： 2023 年 1266 卷
页码：
收录情况： SCI
摘要： Cd2+ is one of the most toxic heavy metal ions that can be easily accumulated in human body via food chain. Thus, the onsite detection of Cd2+ in food is very important. However, present methods for Cd2+ detection either require the use of large equipment, or suffer from the severe interference from other analogical metal ions. This work establishes a facile Cd2+ mediated turn-on ECL method for highly selective detection of Cd2+ via cation exchanging with the nontoxic ZnS nanoparticles, owing to the unique surface-state ECL properties of CdS nanomaterials. The linear range of the calibration curve is from 7.0 x 10-8 to 1.0 x 10-6 M, while other analogical metal ions do not interfere, facilitating the selective detection of Cd2+ in oyster samples. The result agrees well with that obtained using atomic emission spectroscopy, indicating the potential for wider application of this approach.
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