Benzo (k) fluoranthene in Foods

Abstract

Benzo (k) fluoranthene (BkF) is a polycyclic aromatic hydrocarbon which is of interest because its fluorescence spectra bear a close resemblance to those of benzo (a) pyrene (BaP). However, there have been few reports so far as to its actual content in foods.Our previous report described a method to separate BaP from BkF when the two hydrocarbons coexist in the final solution. In this work, the presence and content of BkF were explored in 48 samples of foods, including meat, fish, fruit, butter, etc.BkF was detected at levels of 0.01 to 29.9ppb in 30 out of 48 samples, and the BaP content determined simultaneously was 0.06 to 25.6ppb in 33 out of 48 samples.The regression line of BkF (Y) on BaP (X) was: Y=0.73X-0.48 and the correlation coefficient was 0.83.