在FX-100型核磁共振仪器上,将WEFT技术用于观察糖类化合物六元环结构中与氧原子直接联结的C_1上的α、β构型质子峰高的变化,从中获取糖类化合物在水溶液中的变旋行为信息,得到α、β构型的平衡时间,以及最后平衡浓度α、β各占的百分比;通过变旋的动力学过程,跟踪了一般~1H NMR无法观察到的C_2位质子峰的化学位移。 In the FX-100 NMR instrument, WEFT technique was used to observe the proton peak height changes of α and β configurations on C_1 directly linked to oxygen atoms in the six-membered ring structure of carbohydrate, Aqueous solution, the equilibrium time of α, β configuration and the percentage of the final balance concentration α, β were obtained. The C_2 positions which can not be observed by 1H NMR were traced by the kinetics of variable rotation Chemical shifts of proton peaks.