The anion starch microspheres(magnetic TSM) were made of magnetic ESM by the secondary polymerization and anionization using Na 3P 3O 9 as the cross linking agent.

• 以其为原料，用Na3P3O9作交联剂进行二次交联和阴离子化，得到一种阴离子型磁性淀粉微球（TSM，一种用三聚偏磷酸钠作交联剂的淀粉微球）。