DETERMINATION OF TRIS(2-BUTOXYETHYL) PHOS PHATE IN TEXTILES AND HOUSEHOLD WAX PRODUCTS BY CAPILLARY GAS-CHROMATOGRAPHY

Determination of tris (2-butoxyethyl) phosphate (TBXP) in household pr oducts (textiles and some kinds of household wax products) was examine d by capillary gas chromatography using a flame photometric detector ( FPD). A simple and successfully cleaned up preparation using the diffe rence in liquid-liquid partition behaviour has been developed for the determination. The detection limit by this method was 40 pg. For the d etermination of TBXP in textiles, TBXP were extracted from samples wit h methanol under reflux at 70-degrees-C. For the removal of polar mate rials, distilled water was added to the extract, and TBXP was extracte d into dichrolomethane from the methanolic phase. After evaporating th e organic solvent, the residue was dissolved in n-hexane, and applied to the GC. The recovery of TBXP added to textiles at the amount of 200 0 mug was 99% in average. For the determination of TBXP in household w ax products, samples were dissolved in n-hexane and were washed 3 time s with distilled water to remove polar materials. For the removal of n onpolar materials, TBXP was extracted from the n-hexane phase into ace tonitrile. After evaporating the organic solvent, the residue was diss olved in n-hexane, and applied to the GC. The recovery of TBXP added t o the household wax product at the amount of 2000 mug was 97% in avera ge. A large amount of TBXP (over 10000 mug/g) was detected in 2 out of 6 brands of floor-finishes, but not in all 3 brands of flame retardan t finished curtains by this proporsal method.