Copper nanoclusters as fluorescence-quenching probes for the quantitative analysis of total iodine

被引：20

作者：

Cao, Xueling ^{[1
]}

Li, Xin ^{[2
]}

Liu, Faxian ^{[2
]}

Luo, Yanan ^{[1
]}

Yu, Liying ^{[1
]}

机构：

[1] Jilin Inst Chem Technol, Coll Chem & Pharmaceut Engn, Jilin 130012, Jilin, Peoples R China

[2] Jilin Petrochem Co, Jilin, Jilin, Peoples R China

来源：

LUMINESCENCE | 2018年 / 33卷 / 05期

基金：

中国国家自然科学基金;

关键词：

copper nanoclusters; fluorescence quenching; iodine detection; response mechanism; CU NANOCLUSTERS; SELECTIVE DETECTION; ION CHROMATOGRAPHY; GOLD NANOCLUSTERS; SENSOR; SEAWATER; SAMPLES; SERUM;

D O I：

10.1002/bio.3498

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Tannic acid-coated copper nanoclusters (CuNCs@TA) were synthesized and used quantitatively to analyze iodine in kelp. Compared with other methods for iodine detection, the proposed method showed excellent performance. The iodine-induced linear decrease in the fluorescence intensity of CuNCs@TA allowed the quantitative detection of iodine in the range 20-100M, and the limit of detection for iodine was 18nM. The probe can be used for the determination of iodine in real samples with reliable and accurate results. Modified Stern-Volmer equation and thermodynamic calculation studies were used to discuss the quenching mechanism.

引用

页码：981 / 985

页数：5

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