The document introduces a rapid LC/MS/MS method for analyzing aflatoxins in complex matrices with immunoaffinity clean-up
The document presents a validated Liquid Chromatography-Tandem Mass Spectrometry (LC/MS/MS) method for the analysis of carcinogenic mycotoxins known as aflatoxins. The method utilizes an Agilent 320-MS instrument equipped with an ESI source and ProStar solvent delivery systems to detect aflatoxins B1, B2, G1, and G2 in complex food matrices such as sake and wheat beer.
The procedure involves sample preparation using the AflaCLEAN immunoaffinity column for cleanup. The method details specific HPLC conditions, API parameters including ionization mode and gas settings, and MRM (Multiple Reaction Monitoring) parameters for quantitation and confirmation of each toxin. Results indicate that all four aflatoxins can be separated and detected in less than eight minutes with limits of quantitation below 0.5 ppb.
The method detects and analyzes aflatoxins B1, B2, G1, and G2.
The LOQs for all four aflatoxins are less than or equal to 0.5 ppb.
The analysis was performed using a Varian (now Agilent) 320-MS LC/MS/MS system.