Comparison of supercritical fluid extraction and conventional liquid-solid extraction for the determination of benzo[a]pyrene in water-soluble smoke.
Extraction of benzo[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 obtained for each one. The merits and disadvantages of each extraction method are discussed.
Laffon Lage
B
B
Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Pharmacy, University of Santigo de Compostela, La Coruña, Spain.
García Falcón
S
S
Gonzalez Amigo
M S
MS
Lage Yusty
M A
MA
Simal Lozano
J
J
D001564:Benzo(a)pyrene / Q000302:isolation & purification*; D012906:Smoke / Q000032:analysis*; D012995:Solubility; D013050:Spectrometry, Fluorescence
D012906:Smoke; D001564:Benzo(a)pyrene