Determination of Sudan I and II in Food by High-Performance Liquid Chromatography after Simultaneous Adsorption on Nanosilica

Table 2

Method performance and validation parameters.

Chemical	Linear range (mg·L^−1)	Linear equations	Coefficient	MDL (mg·kg^−1)	MQL (mg·kg^−1)	Mean recovery % (n = 18)^a
Sudan I	2 × 10^−3 to 10	Y = (69170.3 ± 590.3) × C	0.9999	0.0022	0.0074	99.83
Sudan II	5 × 10^−3 to 10	Y = (75700.1 ± 371.2) × C	0.9998	0.0029	0.0096	96.16

^aThree fortification levels (6 repetitions each).