The detection of formaldehyde in textiles using interdigitated microelectrode array diffusion layer titration with electrogenerated hypobromite

被引:0
|
作者
Peter Tomčík
Pavlína Jenčušová
Monika Krajčíková
Dušan Bustin
Roman Brescher
机构
[1] Slovak University of Technology,Department of Analytical Chemistry
[2] VIPOTEST s.r.o. Partizánske,Analytical Chemistry Laboratory
[3] Service Púchov,undefined
来源
Analytical and Bioanalytical Chemistry | 2005年 / 383卷
关键词
Formaldehyde; Interdigitated microelectrode array; Hypobromite; Environmental pollutants;
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摘要
An interdigitated microelectrode array (IDA) was applied to the determination of formaldehyde released from textiles produced in industry. The proposed method is based on formaldehyde reaction with hypobromite which is formed in weakly basic media by control current electrooxidation of bromide on the generator segment of the IDA array. The unreacted hypobromite diffuses through the gap between individually polarisable IDA segments and it is amperometrically detected on the collector segment of the IDA. The efficiency of this nonconvective transfer process in the absence of formaldehyde was substantially higher (78%) in comparison with that when using the rotating ring disc electrode. The influence of the added formaldehyde on the transfer process can be utilised to develop a simple and sensitive analytical procedure for formaldehyde detection with a detection limit of 4×10−6 mol dm−3.
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页码:864 / 868
页数:4
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