the procedures evaluated incorporated the most widely used stages of clean-up including solvent extraction and silica gel chromatographic clean-up , selective solvent extraction of the extracted residue , the use of deproteination prior to hydrophilic column liquid-liquid partition or solvent extraction and the use of pre-packed reversed-phase cartridges for the direct extraction of aflatoxin m1 from the milk .
C0184661
procedures
C0220825
evaluated