HPLC method for the deter mination of 5-Hydroxymethylfur fural (5-HMF),a decomposition product of sugars in sugar solutions (thinjuice, syrup or molasses) was proposed.

• 提出了用高效液相色谱法测定蔗糖溶液中糖的降解产物5-羟甲基糠醛（5HMF）的方法，并对清汁、糖浆及各种精蜜样品进行了分析。