Absorption and resonance Rayleigh scattering spectra of the interaction for copper nanoparticles with vitamin B1

被引：20

作者：

Wang Qi ^{[1
]}

Lin Zhong-Fang ^{[1
]}

Kong Ling ^{[1
]}

Lin Shao-Pu ^{[1
]}

机构：

[1] SW China Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2007年 / 35卷 / 03期

基金：

中国国家自然科学基金;

关键词：

copper nanoparticles; vitamin B-1; resonance Rayleigh scattering; absorption spectrum;

D O I：

10.1016/S1872-2040(07)60040-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sensitive, simple and fast method for the detertination of Vitamin B-1 with nanoparticles as probe by resonance Reyleigh scattering (RRS) technique has been developed. In the presence of excess F copper nartoparticles were prepare(l by Using the reduction reaction of NaBH, an(I copper sulphate. In the solution, I- anions self-assemble on the surface of copper nanoparticles an(I become large anionic complexes [CunIm](x-). It can react further with Vitamin B, cations to form binging products, resulting in the change of the absorption spectrum an(I great enhancement of RRS intensity. The maximum scatting wavelength is 369 nm. There was a linear relationship between the RRS intensity(Delta I) and the Vitainin B-1 concentration in the range 40.02 -0.40 mg/L. The (letechon livint. For Vitamin B-1 was 6.4 mu g/L.

引用

页码：365 / 369

页数：5

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