甜茶(Rubus suavissimus S.Lee)含一种高甜度的甜茶素,为斯替维醇(Steviol)和葡萄糖结合而成的二萜甙。 甜叶菊中斯替维甙的含量测定方法有:气相色谱法、薄层——气谱联合测定法、薄层层离——分光光度法、薄层扫描测定法等。甜茶中,甙的含量测定尚无人进行过研究,本文参照宫崎等人的薄层层离——分光光度法进行了研究。即首先把甙加酸水解为异 Rubus suavissimus S. Lee contains a high-sweetness sweetening tea, which is a combination of Steviol and glucose. Stevia rebaudiana diterpenoids content determination methods include: gas chromatography, thin layer - gas spectrum combined determination, thin layer detachment - spectrophotometry, thin layer scanning assay and so on. In sweet tea, the determination of the content of strontium has not been studied. This article studied the thin layer detachment-spectrophotometry with reference to Miyazaki et al. That is, first hydrolyzed the acid to different