Food contamination by hydrocarbons from packaging materials determined by coupled LC-GC.
Paraffins from raw extracts of foods and packing materials were isolated by LC and directly transferred to GC, applying concurrent eluent evaporation and a loop-type interface. Paraffins from various packing materials have been characterized: sisal bags, cardboard boxes, plastic films, wax-coated paper and cardboard as well as paraffin coatings. Important food contamination was found for sisal bags, cardboard boxes, and wax-coated paper/cardboard. Contamination by paraffin coatings on cheese was surprisingly small.
Grob
K
K
Kantonales Labor, Zürich, Switzerland.
Biedermann
M
M
Artho
A
A
Egli
J
J
D000535:Aluminum; D002849:Chromatography, Gas; D005506:Food Contamination / Q000032:analysis*; D005511:Food Handling; D006838:Hydrocarbons / Q000032:analysis*; D008899:Mineral Oil / Q000032:analysis; D010209:Paper; D010232:Paraffin / Q000032:analysis*; D011095:Polyethylenes / Q000737:chemistry; D011126:Polypropylenes / Q000737:chemistry
D006838:Hydrocarbons; D011095:Polyethylenes; D011126:Polypropylenes; D010232:Paraffin; D008899:Mineral Oil; D000535:Aluminum