【摘要】 采用吸附量测定及光电子能谱技术研究了糊精在改性的石英表面和金红石表面的吸附机理。发现糊精并不像文献中所报道的因疏水键合作用而吸附，而是通过与矿物表面金属羟基络合物作用而吸附，因此其吸附量随溶液ｐＨ值而变化。矿物表面疏水性在糊精吸附过程中不起主要作用，但有提高糊精吸附的协同作用。更多还原

【Abstract】 The adsorption mechanism of paste on the surfaces of modified quartz and ru-tile is studied by adsorption capacity determination and optoelectric spectrometry,The studyshows that the adsorption results from its effect on metal hydroxy complexes on the miner-als surfaces,instead of its hydrophobic bonding effect as reported in some literature,There-fore,the adsorption capacity varies with pH. The hydrophobicity of the minerals surfacesdoes not play a dominant role in the adsorption process of paste , but is conducive to the im-provement of synergistic effect of paste adsorption.更多还原