Glutathione-capped Mn-doped ZnS quantum dots as a room-temperature phosphorescence sensor for the detection of Pb2+ ions

被引：51
作者：
Chen, Jialing [1 ]
Zhu, Yaxian [1 ]
Zhang, Yong [2 ,3 ]
机构：
[1] Xiamen Univ, Coll Chem & Chem Engn, Key Lab Spectrochem Anal & Instrumentat, Dept Chem,Minist Educ, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Coll Environm & Ecol, State Key Lab Marine Environm Sci China, Xiamen 361102, Fujian Province, Peoples R China
[3] Zhangzhou Inst Technol, Zhangzhou 363000, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2016年 / 164卷
关键词：
Glutathione-capped Mn-doped ZnS quantum dots (GSH-Mn-ZnS QDs); Room-temperature phosphorescence; Pb2+; ASCORBIC-ACID; DISCRIMINATION; LUMINESCENCE; ENHANCEMENT; LEAD;
D O I：
10.1016/j.saa.2016.04.014
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The room-temperature phosphorescence (RTP) of glutathione-capped Mn-doped ZnS quantum dots (GSH-Mn-ZnS QDs) was effectively quenched by the addition of Pb2+. A simple and sensitive RTP sensor for Pb2+ detection based on the quenching effect was developed. Under the optimal conditions, good linear correlations were obtained for Pb2+ over a concentration range from 1.0 to 100 mu g.L-1 and the detection limit was 0.45 mu g.L-1. The established method has been successfully applied for the determination of Pb2+ in real water samples without complicated sample pretreatment with the recoveries in the range of 95.4%-104.0%. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：98 / 102
页数：5
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