Comparison of extraction techniques for gas chromatographic determination of volatile carbonyl compounds in alcohols.
Two extraction procedures, i.e. conventional liquid-liquid extraction (LLE) and liquid solid-phase microextraction (SPME) for extraction of the oximes formed after derivatization of carbonyl compounds with o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine (PFBHA) in alcoholic solutions have been compared. The limit of detection for LLE followed by GC-ECD determination of C1-C6 was in the range of 0.23-3.3 microg/L, whereas for liquid SPME 0.005-0.33 microg/L. Both methods elaborated can be applied to the determination of carbonyl compounds present in spirits and alcoholic beverages.
Wardencki
W
W
Department of Analytical Chemistry, Chemical Faculty, Technical University of Gdańsk, Poland. wawar@chem.pg.gda.pl
Orlita
J
J
Namieśnik
J
J
D000434:Alcoholic Beverages / Q000032:analysis*; D000438:Alcohols / Q000032:analysis*; D002273:Carcinogens / Q000032:analysis; D002849:Chromatography, Gas / Q000379:methods; D007202:Indicators and Reagents; D009153:Mutagens / Q000032:analysis; D009930:Organic Chemicals / Q000032:analysis*
D000438:Alcohols; D002273:Carcinogens; D007202:Indicators and Reagents; D009153:Mutagens; D009930:Organic Chemicals