Synthesis of Copper Nanoclusters and Its Application in Determination of Pyrophosphate

被引：4

作者：

Han Yan-Yan ^{[1
]}

Gao Xue-Qing ^{[2
]}

Wang Da-Wei ^{[2
]}

Zhuang Xu-Ming ^{[2
]}

Tian Chun-Yuan ^{[2
]}

Fu Xiu-Li ^{[2
]}

机构：

[1] Yantai Vocat Coll, Yantai 264670, Peoples R China

[2] Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2021年 / 49卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Copper nanoclusters; Nanocomposite; Pyrophosphate; Fluorescent sensor; INORGANIC PYROPHOSPHATE; SENSITIVE DETECTION; GOLD NANOCLUSTERS; CU NANOCLUSTERS; FLUORESCENT; EMISSION; ELECTROCHEMILUMINESCENCE; CHEMOSENSORS; CYSTEINE; SULFIDE;

D O I：

10.19756/j.issn.0253-3820.201742

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

By using 3-mercaptopropionic acid (MPA) as a reductant and protective agent, fluorescent copper nanoclusters (MPA-CuNCs) were prepared by one-pot reaction method, and Cu2+ @ MPA-CuNCs was further synthesized based on that Cu2+ could induce aggregation-induced emission effect of MPA-CuNCs. The synthesized Cu2+@ MPA-CuNCs nanocomposite was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy, etc. The experimental results showed that Cu2+@ MPA-CuNCs nanocomposite was successfully synthesized. Pyrophosphate can combine with Cu2+, which lead to the fluorescence quenching of Cu2+@ MPA-CuNCs system. Based on this, a new fluorescent sensor was thus constructed for sensitive detection of pyrophosphate, with a good linear relationship in the concentration rang of 5-100 mu mol/L. The limit of detection was 0. 65 mu mol/L (3 sigma). This method had high selectivity in detection of pyrophosphate.

引用

页码：1300 / 1307

页数：8

共 35 条

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