Quantitative analysis of gas mixtures by voltammetric sensing

被引：23

作者：

Knake, R ^{[1
]}

Guchardi, R ^{[1
]}

Hauser, PC ^{[1
]}

机构：

[1] Univ Basel, Dept Chem, CH-4004 Basel, Switzerland

来源：

ANALYTICA CHIMICA ACTA | 2003年 / 475卷 / 1-2期

关键词：

voltammetry; gas sensor; ethanol; acetaldehyde; acetylene; sulfur dioxide; ozone; nitrogen oxide; nitrogen dioxide;

D O I：

10.1016/S0003-2670(02)01225-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of a Nafion(R)-backed porous gold electrode to the direct voltammetric analysis of mixtures of electroactive gases was investigated. It was found difficult to design a sensor which shows low charging currents needed for fast voltage sweeps while maintaining high sensitivity. Nevertheless, it was possible to successfully analyze two mixtures consisting of either three organic electroactive components or of four inorganic species in the ppm-range. The evaluation of the results requires the use of multivariate calibration; partial least squares regression was employed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：17 / 25

页数：9

共 24 条

[1] THE VOLTAMMETRY OF SOME OXIDIZING AND REDUCING TOXIC GASES DIRECT FROM THE GAS-PHASE, AT GOLD AND PLATINUM METALLIZED-MEMBRANE ELECTRODES IN ACID AND ALKALI [J].