title: Detection of tricresyl phosphates and determination of tri-o-cresyl phosphate in edible oils.
abstract: Tricresyl phosphate (TCP) in contaminated edible oils was extracted using acetonitrile and detected by thin layer chromatography as well as gas chromatography (GC). The chromatoplate was developed with isooctane-ethyl acetate (90 + 10) and visualized by spraying with 2,6-dichloroquinone chloroimide. TCP gives a characteristic blue-violet spot when heated at 100 degrees C for 15 min. The method is direct and sensitive and can be used to detect as low as 2.5 micrograms TCP or TOCP (tri-o-cresyl phosphate). GC was carried out using 10% OV-101 as the stationary phase and flame ionization detection for confirmation and quantitation of TOCP in oils.
mesh_terms: D000097:Acetonitriles / Q000032:analysis; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D003408:Cresols / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D009821:Oils / Q000032:analysis*; D014317:Tritolyl Phosphates / Q000032:analysis*
chemical_list: D000097:Acetonitriles; D003408:Cresols; D009821:Oils; D014317:Tritolyl Phosphates; C025541:tri-o-cresyl phosphate; C032159:acetonitrile