| A sub-nanomole level electrochemical method for determination of prochloraz and its metabolites based on medical stone doped disposable electrode. | |
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MedLine Citation:
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PMID: 21111179 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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A ultrasensitive, simple and convenient electrochemical method was firstly developed for the determination of prochloraz and its metabolites as 2,4,6-trichlorophenol (2,4,6-TCP) using nano-aperture medical stone. Compared with the undoped disposable electrode (UDE), nano-aperture medical stone doped disposable electrode (MSDDE) not only significantly enhances the oxidation peak current of 2,4,6-TCP but also lowers the oxidation overpotential, suggesting that the nano-aperture MSDDE can remarkably improve the sensitivity of 2,4,6-TCP. The experimental conditions such as pH values of buffer solution, the content of nano-aperture medical stone, accumulation potential and time were optimized for the determination of 2,4,6-TCP. At optimal conditions, the oxidation peak current is proportional to the concentration of 2,4,6-TCP over the range from 6.0 × 10(-9) to 8.0 × 10(-5)mol L(-1). Finally, this novel method was successfully employed to detect prochloraz and its metabolites in orange rind with the detection limit of 8.4 × 10(-10)mol L(-1) (0.3 ng g(-1)) and the method was validated by gas chromatography. |
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Authors:
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Hongbo Li; Jing Li; Chuantao Hou; Shi Du; Yanyan Ren; Zhanjun Yang; Qin Xu; Xiaoya Hu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-08 |
Journal Detail:
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Title: Talanta Volume: 83 ISSN: 1873-3573 ISO Abbreviation: Talanta Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2984816R Medline TA: Talanta Country: England |
Other Details:
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Languages: eng Pagination: 591-5 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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College of Chemistry and Engineering, Yangzhou University, 88 South University Avenue, Yangzhou 225002, PR China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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