Coupled biosensor, biomimetic and chemometrics strategies for analysis of the metals in complex environmental matrices

Sunil Bhand, E Yilmaz, Bengt Danielsson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

4 Citations (SciVal)

Abstract

An analytical strategy to determine metals in environmental samples contaminated with both organophosphate pesticides and metals is presented. In the first step, parathion and arsenate were determined separately. Inhibition of the enzyme butyrylcholinesterase was quantified employing an enzyme thermistor and also with a CCD camera. Subsequently, parathion mixed with arsenate was measured. A molecularly imprinted polymer catalyst was then introduced as a pre-column to degrade OPs. The catalytic MIP enabled the measurement of metal from the mixture containing OPs. Hydrolysis of parathion, ethyl paraoxon, O-Ethyl-O-(4-nitrophenyl)-phenylphosphonothioate EPN and dichlorvos were monitored by using catalytic MIPs in the enzyme thermistor. Finally, inhibition patterns of parathion and arsenate were obtained employing multivariate analysis. The patterns generated after eliminating the OPs can be used for monitoring and mapping of metals in various environmental matrices.
Original languageEnglish
Title of host publicationJournal de Physique IV - Proceedings
PublisherEDP Sciences
Pages169-172
Volume107
DOIs
Publication statusPublished - 2003
EventXIIth International Conference on Heavy Metals in the Environment - Grenoble, France
Duration: 2003 May 262003 May 30

Publication series

Name
Volume107
ISSN (Print)1155-4339
ISSN (Electronic)1764-7177

Conference

ConferenceXIIth International Conference on Heavy Metals in the Environment
Country/TerritoryFrance
CityGrenoble
Period2003/05/262003/05/30

Subject classification (UKÄ)

  • Biochemistry and Molecular Biology

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