| Fluorescence quenching of CdSe quantum dots by nitroaromatic explosives and their relative compounds. | |
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MedLine Citation:
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PMID: 17870656 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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CdSe quantum dots (QDs) were synthesized in oleic acid and octadecene medium under high-temperature and dispersed in chloroform. Nitroaromatic explosives and their relative compounds, 2,4,6-trinitrotoluene (TNT), 2,4-dinitrotoluene (DNT), nitrobenzene (NB), 2,4-dinitrochlorobenzene (DNBCl) and p-nitrotoluene (NT) can obviously cause the fluorescence quenching of the synthesized QDs. Under the optimum conditions, a nonlinear response was observed over the concentration range of 10(-8) to 10(-5) M for them all. The modified Stern-Volmer quenching equations of ln I(0)/I versus C show a good linear relation in 10(-5) M order of magnitude, and the detection limits approach 10(-6) to 10(-7) M. |
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Authors:
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Guo Hua Shi; Zhuo Bin Shang; Yu Wang; Wei Jun Jin; Tian Cai Zhang |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-08-08 |
Journal Detail:
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Title: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Volume: 70 ISSN: 1386-1425 ISO Abbreviation: Spectrochim Acta A Mol Biomol Spectrosc Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-06-09 Completed Date: 2008-09-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9602533 Medline TA: Spectrochim Acta A Mol Biomol Spectrosc Country: England |
Other Details:
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Languages: eng Pagination: 247-52 Citation Subset: IM |
Affiliation:
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School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Absorption Cadmium Compounds / chemistry* Explosive Agents / chemistry* Microscopy, Electron, Transmission Quantum Dots* Selenium Compounds / chemistry* Spectrometry, Fluorescence Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Cadmium Compounds; 0/Explosive Agents; 0/Selenium Compounds; 1306-24-7/cadmium selenide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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