Analysis of Peanut and Peanut Butter Retailed in Korea for Aflatoxin B₁
2006
Park, J.W. (Health Canada, Ottawa, Ontario, Canada), E-mail: [email protected]
Aflatoxin B₁ in 70 retail samples, including 40 food-grade peanut (28 domestic, 12 imported) and 30 peanut butter (12 domestic, 18 imported) samples, was analyzed by high-performance liquid chromatography (HPLC)with fluorescence detection (FD), and positive samples were confirmed using HPLC with mass spectrometry (MS). Recoveries of aflatoxin B spiked at 2 ppb exceeded 80% in both commodities. Detection limits for aflatoxin B₁ by HPLC-FD and MS analysis were 0.8 and 0.1 ppb, respectively.
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