Determination of cysteamine using label-free gold nanoparticles

被引：36

作者：

Apyari, Vladimir V. ^{[1
]}

Dmitrienko, Stanislava G. ^{[1
]}

Arkhipova, Viktoriya V. ^{[1
]}

Atnagulov, Aydar G. ^{[1
]}

Zolotov, Yuri A. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

来源：

ANALYTICAL METHODS | 2012年 / 4卷 / 10期

关键词：

SURFACE-PLASMON RESONANCE; COLORIMETRIC DETECTION; OPTICAL-ABSORPTION; CHROMATOGRAPHY; ELECTRODE; SAMPLES; IONS; SIZE;

D O I：

10.1039/c2ay25675d

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Label-free gold nanoparticles were applied as a colorimetric probe for the determination of cysteamine. The approach is based on aggregation of the nanoparticles leading to a change in the absorption spectra and color of the solution. The influence of different factors (the presence of EDTA, pH, the concentrations of cysteamine and the nanoparticles) on the aggregation and analytical performance of the procedure was investigated. The potentiality of EDTA as a masking agent to eliminate the interference of metal cations was estimated. The method allows the determination of cysteamine with a detection limit of 0.01 mu g mL(-1). It was applied to the analysis of a hair-waving formulation and urine.

引用

页码：3193 / 3199

页数：7

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