Provided are a method for preparing a glycan from a glycoprotein, and a kit and a device for preparing a glycan from a glycoprotein. The method includes (I) a step of obtaining a glycan-containing sample by bringing a glycan releasing solution that contains a hydroxylamine compound and a basic reagent into contact with the glycoprotein and releasing the glycan from the glycoprotein; (II) a step of adsorbing a glycan having a length of a monosaccharide or more on a purifying agent for purifying the glycan by bringing the glycan-containing sample into contact with the purifying agent, which is composed of a compound having a betaine structure; and (III) a step of eluting the glycan from the purifying agent.
本发明提供了一种从糖蛋白中制备聚糖的方法,以及一种从糖蛋白中制备聚糖的试剂盒和装置。该方法包括 (I) 通过使含有
羟胺化合物和碱性试剂的聚糖释放溶液与糖蛋白接触并从糖蛋白中释放聚糖,从而获得含聚糖样品的步骤;(III) 从纯化剂中洗脱聚糖。