Application of functional CdS nanoparticles in determination of silver ion by resonance light-scattering technique

被引:14
作者
Chen, Hong-Qi [1 ]
Luo, Fa-Bo [1 ]
Liu, Yan [1 ]
Liang, A. -Ni [1 ]
Lin, Bo [1 ]
Wang, Lun [1 ]
机构
[1] Anhui Normal Univ, Anhui Key Lab Chem Biosensor, Coll Chem & Mat Sci, Wuhu 241000, Peoples R China
关键词
CdS nanoparticles; Resonance light-scattering technique; Silver ion; Determination; CDTE QUANTUM DOTS; NUCLEIC-ACIDS; FLUORESCENCE; PROTEINS; PRECONCENTRATION; DNA;
D O I
10.1016/j.saa.2008.06.026
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Based on the strong enhancement effect of silver ion on resonance light-scattering intensity of functional CdS nanoparticles, a new direct quantitative determination method for silver ion was established. Under the optimum conditions, the response signal is linearly proportional to the concentration of silver ion. The linear range is 5.0 x 10(-9)-2.0 x 10(-6) mol L-1. The proposed method was applied to determine silver ion in river water samples. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1701 / 1703
页数:3
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