Using ethyl acetate as solvent,isosorbide can be refined with actived carbon,the suitable condition can be obtained and the product quality meets the quality standard of USP24.

• 采用乙酸乙酯为溶剂，粉状活性炭吸附精制异山梨醇粗品，得出适宜的精制条件，其精制品质量符合USP24版质量标准。