【摘要】 本文以氢化物发生原子荧光(HG-AFS)为检测手段,通过微柱实验模式系统的考究了负载型纳米TiO2对于As(Ⅲ)的吸附行为,并与传统的反应池模式进行了对比,研究结果表明微柱实验模式能够快速的吸附溶液中的As(Ⅲ),吸附效果良好并且吸附剂可用NaOH溶液洗脱再生。损失小,操作方便快捷,可用于环境样品中As(Ⅲ)的吸附处理。更多还原

【Abstract】 The adsorption behavior of As（Ⅲ）on silica gel-supported nanoparticle TiO₂ was studied by the microcolumn method and the batch method,respectively.The adsorbed As（Ⅲ）were determined by hydride generation atomic fluorescence spectrometry（HG-AFS）.The results showed that the As（Ⅲ）can be adsorbed rapidly by microcolumn method,and eluted completely by NaOH solution.The present method showed the advantages of simplity,a potential application in the environmental analysis.更多还原