The experiments results showed that when concentration of solid substance of the waste aqueous solution was condensated to 13 % ( w / v ) on vacuum , 95 % alcohol ( 1 : 1 , v / v ) was added to the condensated solution to sedimentate polysaccharose , sedimentation was centrifugalized , repeated above treatment , and filtrate was collected and condensated on vacuum , then chlorogenic acid crystal of 76 % purity was obtained 多次实验结果表明，浸提液浓缩到固形物含量在13 %时，加入浸提浓缩液体积1倍量的95 %的乙醇沉淀并过滤掉多糖，反复处理两次，滤液再经真空浓缩得到纯度76 %左右的绿原酸。
Cell compatibility of films is researched firstly , which will make a significant contribution to the using fha films in practice from development . cell cycle , measured by flow cytometer and mtt method , and cell growth curve are used to analyze the impact of material and the immersed medium to the multiplication of osteoblast - cell 通过mtt法，流式细胞仪测定细胞周期，以及细胞生长曲线的测定，分析研究了fha薄膜材料对成骨细胞增殖生长的影响以及材料的浸提液对细胞增殖的影响，通过细胞相对增殖活性的测定对fha薄膜进行毒性评级。
