Through static adsorption experiments,a new type of resin named LX-T3 was screened out.It adsorbs not only less pigment but also more stevia.Dynamic adsorption experiments were conducted in order to study the effect of different sample rate on the adsorption quantity,adsorption rate and desorption rate as well as the effect of different concentration of ethanol-water to the desorption rate of LX-T3 resin.The results show that the LX-T3 has good differentiation betweenstevia molecules and pigment molecules.The adsorption capacity of LX-T3 is significantly larger than that of the major adsorption resins which are used in the extraction and separation of stevia currently.The optimum sample rate of LX-T3is 2,mL/min.The desorption rate can reach 100%, when the elution is with 60%, ethanol-water solution.%通过静态吸附实验筛选出了吸附色素少且对甜菊糖分子的吸附量更大的一种型号为LX–T3的新型树脂．对LX–T3树脂进行动态吸附实验，研究了不同上样速率对吸附量、吸附率和解吸附率的影响以及不同浓度的乙醇–水溶液对解吸附率的影响．结果表明：LX–T3树脂对甜菊糖分子和色素分子具有很好的选择性；LX–T3树脂对甜菊糖的静、动态吸附量均显著大于目前国内主要应用于提取分离甜菊糖的一些吸附树脂；该新型树脂的最适上样速率为2,mL/min，用60%,乙醇–水溶液洗脱，解吸附率可达到100%,．
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