| Catalytic solid substrate-room temperature phosphorimetry for the determination of residual perphenazine based on the electronic effect of rhodamine 6G. | |
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MedLine Citation:
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PMID: 23023763 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The rhodamine 6G(+) -perphenazine (Rhod 6G(+) -PPH) compound is formed in the ester-exchange reaction between -OH of PPH and -COOC(2) H(5) of Rhod 6G(+) . PPH was oxidized to a red compound (PPH') in the presence of K(2) S(2) O(8) . Interestingly, the room temperature phosphorescence (RTP) of Rhod 6G(+) was quenched because the -OH of PPH' reacted with -COOC(2) H(5) of Rhod 6G(+) -PPH to form Rhod 6G(+) -PPH' and PPH, which decreased the π-electron density (δ) of the carbon atom in the Rhod 6G(+) -PPH' conjugated system and enhanced the nonradiation energy loss of the excited Rhod 6G(+) of the triplet state. The PPH content was directly proportional to the ΔI(p) of the system. Thus, a new catalytic solid-substrate room temperature phosphorimetry (SSRTP) method was established for the determination of PPH. The method had high sensitivity (the limit of detection was 0.019 fg/spot, corresponding to a concentration of 4.8 × 10(-14) g/mL; the sampling quantity was 0.40 μL/spot), good selectivity, convenience and speed. The analytical results were in accordance with those of high-performance liquid chromatography (HPLC). The structures of Rhod 6G(+) , PPH and Rhod 6G(+) -PPH were characterized by infrared spectra. The reaction mechanism by which PPH was determined is discussed. Copyright © 2012 John Wiley & Sons, Ltd. |
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Authors:
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Zhi-Yong Zheng; Ma-Lin Cui; Li-Hong Zhang; Shu-Lian Jiang; Li Jiao; Xuan Lin; Shao-Qin Lin; Jia-Ming Liu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-1 |
Journal Detail:
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Title: Luminescence : the journal of biological and chemical luminescence Volume: - ISSN: 1522-7243 ISO Abbreviation: Luminescence Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-1 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100889025 Medline TA: Luminescence Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 John Wiley & Sons, Ltd. |
Affiliation:
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Department of Chemistry and Environmental Science, Zhangzhou Normal College, Zhangzhou, 363000, People's Republic of China; Department of Food and Biological Engineering, Zhangzhou Institute of Technology, Zhangzhou, 363000, People's Republic of China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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