Method for Selected Polyaromatics in Mineral Oil by Linear Elution Chromatography as a Rapid Alternate for FDA Method 121.2589 (c) (3)

1 February 1977

journal article
Published by Oxford University Press (OUP) in Journal of Chromatographic Science

Vol. 15 (2) , 75-78
https://doi.org/10.1093/chromsci/15.2.75

Abstract

A simple, rapid alternative to the long and tedious Federal Register technique for selected polyaromatics hydrocarbons in mineral oil has been developed. The polyaromatic hydrocarbons are isolated on partially deactivated alumina followed by separation of the lower aromatics from the tetracyclic and higher aromatics by means of a dual chromatographic column system and appropriate elution solvents. The polyaromatic level of the selected fraction in methanol-ether solution is expressed in ultraviolet absorbance units for the same wavelength ranges as FDA Regulation 121.2589(c). The absorbances obtained by this method for mineral oil correspond closely to absorbances obtained by the Federal Register method.

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