The use of gold nanoparticles as an effective modifier for the determination of arsenic and antimony by electrothermal atomic absorption spectrometry

被引：19

作者：

Gunduz, Sema ^{[1
]}

Akman, Suleyman ^{[1
]}

Baysal, Asli ^{[1
]}

Culha, Mustafa ^{[2
]}

机构：

[1] Istanbul Tech Univ, Fac Sci & Letters, Dept Chem, TR-34469 Maslak, Turkey

[2] Yeditepe Univ, Fac Engn & Architecture, Dept Genet & Bioengn, TR-34755 Kayisdagi Istanbul, Turkey

来源：

MICROCHIMICA ACTA | 2011年 / 172卷 / 3-4期

关键词：

Electrothermal atomic absorption spectrometry; Arsenic; Antimony; Modifier; Gold nanoparticles; METAL MODIFIERS; MECHANISMS; PALLADIUM;

D O I：

10.1007/s00604-010-0500-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Gold nanoparticles (AuNPs) were used as a new chemical modifier for the determination of arsenic and antimony in salt solutions by electrothermal atomic absorption spectrometry. The AuNPs were prepared by reducing chloroauric acid with sodium citrate. The effects of pyrolysis and atomization temperatures, the amounts of interferents and modifier on the sensitivities of arsenic and antimony were investigated. As and Sb remain in the graphite tube up to 1,100 degrees C, which is sufficient for the determination of the two metals in certified reference materials and spiked sea water samples within a 95% confidence level with low RSD (<10%). The detection limits (N=10 at 3 sigma) for As and Sb in sea water are 2.3 mu gL(-1) and 3.0 mu gL(-1), respectively. Almost no background as well as a blank value was detected for AuNPs.

引用

页码：403 / 407

页数：5

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