【摘要】 本文比较了七种树脂对虎杖黄色素的吸附。结果表明,AB-8树脂为吸附剂,丙酮为洗脱剂得到的色素,质量较好、色价较高。AB-8树脂的重复使用性高。使用20次后,吸附率仅降低1.6%。更多还原

【Abstract】 A method of absorbing and separating the yellow pigment from Polygonum Cuspidatum Sieb.et Zucc by macroporous resin was studied. Absorption capacities of seven resins for the pigment were tompared. The results showed that AB-8 resin had the best performance of absorbing yellow pigment on Polygonum Cuspidatum Sieb.et Zucc. In the course of acetone desorbtion of the absorbed Polygonum Cuspidatum Sieb.et Zucc yellow pigment, AB-8 resin showed a fairly good character of stabilization. After using 20 times, The absorption factor was only decreased by nearly 1.6%.更多还原