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Extraction of Malachite Green dye from 4% acetic acid with a PEP. A, adsorbent in the cage is an Empore SDB-XC membrane; B, MP-adsorbent (2.0 g) packed nonuniformly in a cage-immobilized porous nylon bag, n=3; and C, Carboxen-1003 adsorbent (2.0 g) packed in a cage-immobilized porous nylon bag.
