Method validation factors of AFs are shown in Table 1. The Kobra
cell method had lower LOD than the TFA method. In particular, LOD
of aflatoxin G2 in TFA was higher than that in the Kobra cell method
by 32 times. Limit of detection of aflatoxin G2 in TFA and Kobra cell
method were 2.28 and 0.07 ng g1
, respectively. Coefficient of
correlation was closer to 1.00 in the Kobra cell method. Chromatograms
of aflatoxins are shown in Fig. 1. The baseline of the
chromatogram of the Kobra cell method was more stable than that
of the TFA method. In addition, the resolution and sensitivity (AF B1
and G1) of the Kobra cell method was better than those of the TFA
method.