Determination of Isoflavones in Soybean Flour by Matrix Solid-Phase Dispersion Extraction and Liquid Chromatography with UV-Diode Array Detection

Table 1

Estimated LOD and LOQ obtained for the standard isoflavones, together with the precision data of the method.

Compound	LOD; (μg/ml)	LOQ; (μg/ml)	RSD; (%)
Daidzin	0.070	0.234	2.4
Glycitin	0.070	0.228	2.7
Genistin	0.057	0.190	2.6
Daidzein	0.089	0.295	2.7
Glycitein	0.057	0.190	2.0
Genistein	0.124	0.410	2.9