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目的 :对新疆乌鲁木齐市不同采摘期和新疆不同地区桑叶中总黄酮含量进行测定 ;方法 :用分光光度法以芦丁为对照品在 5 0 0nm处测定吸光度 ,回收率为 99 2 5 % ,RSD =1 38% (n =5 ) ;结论 :产地和不同采摘期对桑叶中总黄酮含量影响较大
Objective: To determine the content of total flavonoids in mulberry leaves from different picking seasons in Xinjiang Urumqi and in different regions of Xinjiang; Method: The absorbance was measured at 500 nm with rutin as a reference substance by spectrophotometry, and the recovery rate was 99 2 5 %. RSD = 1 38% (n =5); Conclusion: The place of production and different picking time have a greater effect on the content of total flavonoids in mulberry leaves.