【摘要】 分别研究了在pH2 06及pH8 01条件下及有无赖氨酸存在时蒙脱石及改性蒙脱石对黄曲霉毒素B1的吸附和解吸规律。结果表明,蒙脱石和改性蒙脱石对黄曲霉毒素B1均有较强的吸附性,吸附量随黄曲霉毒素B1含量增加而增加,两者呈直线相关。当吸附反应体系中赖氨酸含量为0 2%、0 4%时,不影响蒙脱石及改性蒙脱石对黄曲霉毒素B1的吸附。蒙脱石和改性蒙脱石对黄曲霉毒素B1的吸附量大小相近,但改性蒙脱石对黄曲霉毒素B1的吸附量不受边面封闭剂的影响,且改性蒙脱石吸附黄曲霉毒素B1后,黄曲霉毒素B1的解吸率较蒙脱石低,表明有机改性蒙脱石对黄曲霉毒素B1有更高的吸附稳定性。更多还原

【Abstract】 The adsorption law of montmorillonite and modified montmorillonite for AFB1 in solution pH206,pH801,with and without lysine were studied.Both of montmorillonite and modified montmorillonite can adsorbed AFB1 greatly.The adsorption amount increased with the concentration of AFB1 increasing.There was a linear correlation between the adsorption amount and the concentration of AFB1.Lysine at concentration of 02%,04% did not affect the adsorption of AFB1 on the adsorbents mentioded above.The adsorption amount of modified montmorillonite for AFB1 was similar to that of montmorillonite,but the desorption rate of AFB1 from the modified montmorillonite-AFB1 sorption complex was lower than that of montmorillonite-AFB1 sorption complex,it indicated that the modified montmorillonite-AFB1 sorption complex was more stable.更多还原