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FL-97-117 CARCINOGENIC ASSESSMENT OF LUBRICANT BASE OILS BY PROTON NMR
Craig S. Nessel, Exxon Biomedical Sciences, Inc., David T. Coker, Alex G. King, Exxon Research Center, Dirk L. Mumford, Exxon Company, International
Format:
Electronic (digital download/no shipping)
Associate Member, International Member, Petrochemical Member, Refining Member -
$0.00
Government, NonMember -
$35.00
Description:
The need for rapid, scientifically-sound tests for the carcinogenic evaluation of lubricant base oils is increasing worldwide. A research program was initiated to evaluate the use of Bay Region Hydrogen (BRH) measurementb y Proton NMR for carcinogenic assessmenot f base oils. Proton NMR can identify and quantify protons in location on polynuclear aromatic hydrocarbon molecules which are associated with carcinogenic activity (“bay regions”), and is potentially applicable to a broad range of petroleum products. Approximately 60 base oils and related materials were tested. All known and suspected noncarcinogenic oils had BRH measurements of less than 600 ppm. Carcinogenic base oils contained greater than 1500 ppm. BRH measurements on straight-run and cracked gas oils supported these results. These data suggesthat BRH measurement by proton NMR may be able to discriminate carcinogenic and noncarcinogenic base oils with a threshold of approximately lOOW400 ppm.
Product Details:
Product ID: | FL-97-117 |
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Publication Year: | 1997 |