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    Direct Analysis of Automotive Fuels for Bioethanol Content Using Radiocarbon Analysis

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    Author
    Norton, Glenn A.
    Issue Date
    2009-01-01
    
    Metadata
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    Citation
    Norton, G. A. (2009). Direct analysis of automotive fuels for bioethanol content using radiocarbon analysis. Radiocarbon, 51(3), 995-1003.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    URI
    http://hdl.handle.net/10150/654209
    DOI
    10.1017/S003382220003407X
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    Exploratory work was performed to investigate the feasibility of using a simplified radiometric analytical approach for determining the bioethanol content of US automotive fuels. The method involves mixing fuel samples directly with a suitable fluor. Sample preparation is extremely rapid since all conventional sample preparation steps are essentially eliminated. Results are based on the background-corrected DPM values obtained when using 10 mL of sample mixed with 10 mL of Permafluor E+. Results are also reported in terms of conventional pMC for some of the samples. Bioethanol from a dry-mill ethanol plant served as the analytical reference sample that represented a 100% bioethanol content. Using current-day bioethanol as a reference sample eliminates the need to correct for "bomb carbon." For 1:1 mixtures of sample and fluor, the background-corrected DPM showed a linear relationship with the bioethanol concentration, indicating that the quench correction approach was effective for the variable-quench samples. Based on the analysis of E0 (pure gasoline), E10, and "E85" from local gas stations, it appears that the method has good potential for determining the bioethanol content in commercial ethanol/gasoline blends. However, a variety of potential sources of error still require investigation in order to refine the method.
    Type
    Article
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S003382220003407X
    Scopus Count
    Collections
    Radiocarbon, Volume 51, Number 3 (2009)

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