CE with a boron-doped diamond electrode for trace detection of endocrine disruptors in water samples

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DOIResolve DOI: http://doi.org/10.1002/elps.201200480
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TypeArticle
Journal titleELECTROPHORESIS
ISSN01730835
Volume34
Issue14
Pages20252032; # of pages: 8
SubjectBoron-doped diamond electrode; Capillary electrophoresis; Endocrine disruptors
AbstractOff-line SPE and CE coupled with electrochemical detection have been used for the determination of bisphenol A (BPA), bisphenol F, 4-ethylphenol, and bisphenol A diglycidyl ether in bottled drinking water. The use of boron-doped diamond electrode as an electrochemical detector in amperometric mode that provides a favorable analytical performance for detecting these endocrine-disrupting compounds, such as lower noise levels, higher peak resolution with enhanced sensitivity, and improved resistance against electrode passivation. The oxidative electrochemical detection of the endocrine-disrupting compounds was accomplished by boron-doped diamond electrode poised at +1.4 V versus Ag/AgCl without electrode pretreatment. An off-line SPE procedure (Bond Elut® C18 SPE cartridge) was utilized to extract and preconcentrate the compounds prior to separation and detection. The minimum concentration detectable for all four compounds ranged from 0.01 to 0.06 μM, having S/N equal to three. After exposing the plastic bottle water container under sunlight for 7 days, the estimated concentration of BPA in the bottled drinking water was estimated to be 0.03 μM. This proposed approach has great potential for rapid and effective determination of BPA content present in water packaging of plastic bottles that have been exposed to sunlight for an extended period of time.
Publication date
PublisherJohn Wiley & Sons
LanguageEnglish
AffiliationNational Research Council Canada; Aquatic and Crop Resource Development
Peer reviewedYes
NRC number55561
NPARC number21268634
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Record identifiera1d824d2-7368-44b0-af15-2904a1e30d5d
Record created2013-11-05
Record modified2016-05-09
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