Document Detail


Aromatic hydrocarbons of mineral oil origin in foods: method for determining the total concentration and first results.
MedLine Citation:
PMID:  19728727     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An online normal phase high-performance liquid chromatography (HPLC)-gas chromatography (GC)-flame ionization detection (FID) method was developed for the determination of the total concentration of the aromatic hydrocarbons of mineral oil origin with up to at least five rings in edible oils and other foods. For some samples, the olefins in the food matrix were epoxidized to increase their polarity and remove them from the fraction of the aromatic hydrocarbons. This reaction was carefully optimized, because also some aromatics tend to react. To reach a detection limit of around 1 mg kg(-1) in edible oils, an off-line enrichment was introduced. Some foods contained elevated concentrations of white paraffin oils (free of aromatics), but the majority of the mineral oils detected in foods were of technical grade with 20-30% aromatic hydrocarbons. Many foods contained mineral aromatic hydrocarbons in excess of 1 mg kg(-1).
Authors:
Maurus Biedermann; Katell Fiselier; Koni Grob
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  57     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-10-07     Completed Date:  2010-01-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8711-21     Citation Subset:  IM    
Affiliation:
Kantonales Labor (Official Food Control Authority of the Canton of Zurich), Zurich, Switzerland.
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MeSH Terms
Descriptor/Qualifier:
Chromatography, Gas
Chromatography, High Pressure Liquid
Environmental Exposure
Food Analysis / methods*
Food Contamination / analysis
Hydrocarbons, Aromatic / analysis*
Mineral Oil / chemistry*
Chemical
Reg. No./Substance:
0/Hydrocarbons, Aromatic; 8020-83-5/Mineral Oil

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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