%0 Journal Article
%T Optimization of the benzo(A)pyrene determination procedure in cacha£¿a
%A Caruso
%A Miriam S. F.
%A Alaburda
%A Janete
%J Journal of the Brazilian Chemical Society
%D 2009
%I Sociedade Brasileira de Qu¨ªmica, SBQ
%R 10.1590/S0103-50532009000300015
%X the present study evaluated and optimized a routine method to quantify and confirm bap in brazilian sugar cane spirit (cacha£¿a). three extraction procedures were tested, one using spe for extraction and clean-up, while two others were liquid-liquid partition extraction followed by silica gel chromatography clean-up. bap was quantified by high performance liquid chromatography with fluorescence detection and confirmed by gas chromatography-mass spectrometry. hplc detection and quantification limits were 0.03 and 0.10 ¦̀g l-1, respectively. the recovery results ranged from 82.9 to 97.0% with coefficients of variation (cv) ranging from 0.5 to 4.9% at concentration levels of 0.1, 1.0 and 3.0 ¦̀g l-1, which are in accordance with those described by other authors. the three procedures were appropriated to quantify bap in cacha£¿a, although spe extraction is the cheapest, fastest and the least solvent-consuming. the levels of bap contamination on twenty cacha£¿a samples ranged from no detected (lod < 0.03 ¦̀g l-1) to 0.49 ¦̀g l-1.
%K benzo(a)pyrene
%K polycyclic aromatic hydrocarbons
%K cacha£¿a
%K sugar cane spirit
%K hplc.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532009000300015&lng=en&nrm=iso&tlng=en