The extraction and cromatographic analysis of some aromatic gritstone compounds of creosote type

This paper studied the possibility of extraction and analysis of eleven org anic compounds of creosote type from gritstone, the representative material of the area under study from Great Britain (polluted and abandoned). The e xtraction was made with a mixture of dichloromethane: acetone, by cryogenic grinding, while the analysis was made by GC/FID and GC/MS. Three levels of pollution were tested for each pollutant, 0.2; 1.0 and 10 ppm. The average extraction output was of 90% while the average CV was of 10%. The analysis lasted for two hours.