The method, determination of total nitrogen and total phosphorus in the same clearing up solution at the same time, is discussed in the paper. 探讨了在同一消解液中同时测定总磷、总氮的分析方法。
Detemination of Total Nitrogen and Total Phosphorus in the Same Clearing up Solution at the Same Time 在同一消解液中同时测定总磷和总氮
The various factors had different influences on the extraction of the total flavonoids in Crataegus pinnatifida leaves; the factor with the strongest influence on the extraction was e ratio of raw material to extracting solution, and extraction time and temperature followed. 各因素对山楂叶总黄酮的提取率影响是不均等的,影响最大的是料液比,其次是温度和时间。