Voltammetric determination of chloride ion in automotive fuel ethanol

被引：11

作者：

Pereira Ferreira, Heitor Breno ^{[1
]}

Fernandes de Lima, Tatiana Aparecida ^{[1
]}

Sanches Barbeira, Paido Jorge ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, ICEx, Dept Quim, Lab Combust, BR-31270901 Belo Horizonte, MG, Brazil

来源：

ELECTROANALYSIS | 2008年 / 20卷 / 04期

关键词：

chloride; stripping voltammetry; fuel ethanol; corrosion; HMDE;

D O I：

10.1002/elan.200704050

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Cathodic stripping voltammetry with a hanging mercury drop electrode was used in this study to determine chloride ions in automotive fuel ethanol. Choosing the correct stripping voltammetric technique, the correct choice of deposition potential and time provided well defined voltammetric waves with good repeatability and relatively small errors, with a determination limit of 0.13 mg L-1, for only 10 s of deposition time, with better sensitivity and repeatability than the normalized method, as well as consumed less volume of the sample, being suitable for routine analysis.

引用

页码：390 / 395

页数：6

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