Determination of Copper Ion in Drinking Water Using Poly(vinyl alcohol)/3-Mercaptopropionic Acid-Capped InP/ZnS Quantum Dots Fluorescent Film

被引：0

作者：

Zhang, Jiaran ^{[1
]}

Xu, Zeyu ^{[2
]}

Yu, Jie ^{[1
]}

Shi, Ce ^{[2
]}

Yue, Yuntao ^{[1
]}

机构：

[1] School of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing

[2] National Engineering Research Center for Agri-product Quality Traceability, Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Information Technology Research Center, Beijing Academy of Agricultur

来源：

Shipin Kexue/Food Science | / 45卷 / 14期

关键词：

copper ion; drinking water; fluorescent film; quantum dots; rapid detection;

D O I：

10.7506/spkx1002-6630-20230724-261

中图分类号：

学科分类号：

摘要：

PVA/MPA-InP/ZnS QD fluorescent film for rapid detection of trace Cu2+ was developed using 3-mercaptopropionic acid (MPA)-capped InP/ZnS quantum dots (MPA-InP/ZnS QDs) as the fluorescence-sensitive material and polyvinyl alcohol (PVA) as the substrate. The microstructure, optical properties and mechanical properties of the fluorescent film were characterized. The results showed that PVA interacted with MPA-InP/ZnS QDs through hydrogen bonds. The fluorescence intensity of the film was significantly correlated with Cu2+ concentration in the range of 0–1 000 nmol/L (R2 = 0.95). The limit of detection (LOD) for Cu2+ was 23 nmol/L, and the response time was 6 minutes. Finally, the film was applied to the detection of trace Cu2+ in drinking water, beverages and alcoholic drinks with the advantages of high selectivity, rapid response and good portability, which exhibited a broad application prospect. © 2024 Chinese Chamber of Commerce. All rights reserved.

引用

页码：227 / 233

页数：6

共 22 条

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