Research and analysis
Analytical recovery of aflatoxins:effect of spiking times
An investigation of the effect of contact time on spike recovery of aflatoxins in peanuts, figs and chilli powder.
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A peer-reviewed technical paper describing a short term (0.5 – 65 hours) and a long term (1 hour - 8 weeks) investigation of the effect of contact time on spike recovery in peanuts, figs and chilli powder. The spiked samples were extracted with 60% acetonitrile, (80% methanol for dried figs and chilli powder) followed by immunoaffinity clean up. Aflatoxin concentrations were then determined using liquid chromatography with post column derivatisation and fluorescence detection.