ADSORPTION EFFECTS OF MINERAL ADSORBER ON THE CLINOPTILOLITE BASIS .2. ADSORPTION BEHAVIOR IN THE PRESENCE OF AMINO-ACIDS AND VITAMINS

The results presented in this paper were obtained by studying the adso rption effects of a mineral adsorber based on clinoptilolite, in conta ct with some aminoacids (tryptophan and phenylalanine) and vitamins (A , D and E). An index of chemisorption (C alpha) was developed as a mea sure of adsorption intensity C alpha showed the ratio between adsorbed and total ligand concentration. The results obtained with aminoacids and vitamins were compared with previous results obtained with aflatox ins (B1, B2 and G2), zearalenone, ochratoxin and T2 toxin under. Ident ical conditions (pH, temperature, electrolyte). It was found that neit her aminoacids nor vitamins were adsorbed by this mineral adsorber. (C alpha approximate to = 0). The index of chemisorption was different f or different toxins. The highest values were for aflatoxins - 0.80-0.9 0, for zearalenone C alpha = 0.50, T2 toxin C alpha = 0.40 and ochrato xin C alpha = 0.35.