Table 1.

Results of validation method parameters for detection and quantification of AFB₁, AFB₂, AFG₁, AFG₂ in Brazil nuts

Aflatoxin	Spiked (µg kg−1)	Recovery	ME (%)	LOD	LOQ	Repeatability (RSD %)	Reproducibility (RSD %)
B1	0.5	90.3	88.2	0.05	0.5	86.4	82.3
	2.0	94.5	90.4			88.3	81.1
	5	96.8	94.2			89.3	84.2
B2	0.5	88.2	83.4			82.4	80.3
	2.0	89.3	85.9			84.1	77.3
	5	90.4	88.6			83.4	75.2
G1	0.5	93.1	89.0			88.5	82.0
	2.0	95.8	90.4			87.9	83.4
	5	93.0	93.4			85.0	82.4
G1	0.5	91.2	92.1			89.3	80.3
	2.0	93.2	93.4			90.2	81.3
	5	90.2	95.3			91.2	84.6

Spiked, concentration spiked in Brazil nuts; ME, matrix effect; LOD, limit of detection; LOQ, limit of quantification.