After the sample is dissolved by CC14, the starch in the sample is allowed toenter into water phase by heating and refluxing with a dilute acid in the water bath.

• 用四氯化碳溶解样品后去与稀酸溶液一起于水浴中加热回流使淀粉进入水相，除掉四氯化碳后在沸水浴中加热回流使淀粉水解为葡萄糖。