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The qualitative and quantitative analysis of aflatoxin B1 in a model system (water/ethanol), in different wines and in beer using one- and two-photon-induced fluorescence is discussed. The absorption and fluorescence properties of aflatoxin B1 depend on the solvent and pH. The two-photon-absorption cross-section was calculated for aflatoxin B1 in beer and wine (σ2 ∼ 25 GM) for excitation at 720 nm...
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