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3D EEM’s between 210 to 750 nm excitation (axis z) and 210 to 750 nm emission (x axis) against intensity (y axis) for different levels of olive oil adulteration concentrations, 100, 75, and 25% (left to right), for corn (1st row), sunflower (2nd row), soya bean oil (3rd row) and linseed (4th row)
