Ephedra sinica

C. Hsu Nandina domestica Thumb and Ephedra sinica Stapf. The optimum range of the partition coefficient values ( K) for solvent system of high speed countercurrent chromatography should be between 0.5-2. And there has two ways to calculate it.

高速逆流色谱溶剂体系的最佳分配系数在0.5～2之间。

CONCLUSION: Essential oils in Ephedra Sinica Stapf from Gansu Province do not contain 1-α-terpineol.

结论：甘肃产人工栽培草麻黄挥发油化学成分不含有1α&松油醇。

The optimum planting places were flatted sandy loam soil for high stable yield of Ephedra sinica production, but shifting or semi shifting sandy lands were available when the soil surface are treated for sand control before planting;

栽植麻黄最好选择平坦沙壤地，以利麻黄的高产稳产，流动半流动沙地也可种植，但种植前应进行地面防沙处理；

Objective To compare the volatile oil chemical components of Ephedra sinica Stapf producing in different area.

目的分析比较不同产地草麻黄挥发性化学成分的异同.

Effects of different seed treatments including low temperature stratification, GA_3, CaCl_2 and KH_2PO_4 on aging seed physiological characteristics were studied with aging seed of Ephedra sinica stapf.

应用低温层积、GA3、CaCl2、KH2PO4处理人工老化处理的麻黄Ephedra sinica种子，研究不同处理对麻黄种子生理生化特性的影响。

Objective : To extract and determine total flavonoids and polysaccharides in Ephedra sinica.

目的: 从麻黄中提取总黄酮和多糖,并测定其含量.