The whole process takes only 10 minutes. This is a rapid method, but is not recognised by standard organisations. Aflatoxin is extracted by aqueous acetone followed by clarification with ferric gel. Aflatoxin is then trapped in the florisil layer in a minicolumn and is quantified by the Neotec Velasco Fluorotoxin Meter. Results from this method are reasonably accurate, taking about 1.5 hours to complete.
Aflatoxin is extracted by aqueous methanol followed by column chromatography for clarification.
Aflatoxin is the detected by TLC and quantified by a densitometer. Results from this method are accurate and most acceptable. This method will take 3-4 hours to complete. The following sampling and sample preparation procedures are designed for shipment certification by aflatoxin analysis utilising the TLC method.