A reactor/phase separator coupling capillary electrophoresis to hydride generation and inductively coupled plasma optical emission spectrometry (CE-HG-ICP OES) for arsenic speciation

被引：29

作者：

Suárez, CA ^{[1
]}

Giné, MF ^{[1
]}

机构：

[1] Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2005年 / 20卷 / 12期

关键词：

D O I：

10.1039/b508081a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The separation of inorganic arsenic species by capillary electrophoresis, CE, and the post column on line arsine generation was performed in a homemade system coupled to an inductively coupled plasma optical emission spectrometer. CE was coupled with a hydride generation reactor/phase separator using a T interface. The hydrides were formed and separated in a device constructed with a 10 ml syringe. Capillary dimensions, flow-rates and connection arrangements were optimised to avoid backpressure in the electrophoresis capillary and to attain good resolution of the enlarged peaks. The CE-HG-ICP signals for As(m) and As(v) presented a peak area increase of a factor around 40 compared with those attained using the direct CE-ICP.

引用

页码：1395 / 1397

页数：3

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