中文摘要：

借助季铵型阴离子交换纤维在弱酸性介质中对As（V）和As（Ⅲ）吸附效果的差异性,结合紫外分光光度法,建立了一种利用纤维填充微柱分离As（V）和As（Ⅲ）的新方法。考察了样品pH、样品流速、初始浓度等因素对As（Ⅲ）和As（V）分离效果的影响。在最优工艺条件下,吸附柱对砷含量在1.0~12.0mg/L的样品的分离效率在95%以上,微柱可重复使用15次以上,再生性良好。

英文摘要：

In weak acid medium, the quaternary ammonium anion exchange fiber had different adsorption performance for As（III） and As（V）, based on this fact, a new method for the separation of As（V） and As（III） using a micro-column packed with fiber was established The experimental parameters on the separation of As（III） and As（V）, such as sample pH, sample flow rate, the initial concentration of As（V）, were investigated. Under the optimized conditions, the adsorption efficiency for the sample in the concentration range of 1.0mg/L to 12mg/L was above 95%, and the adsorption column could be reused for more than fifteen times.