Comparison of supercritical fluid extraction and conventional liquid-solid extraction for the determination of benzol[a]pyrene in water-soluble smoke

摘要

Extraction of benzol[a]pyrene from 12 samples of water-soluble liquid smokes by means of a conventional liquid-solid extraction method was compared with extraction with a supercritical fluid. Results were satisfactory for both methods, there being no significant differences between the recoveries and precisions ob- tained for each one. The merits and disadvantages of each extraction method are discussed.