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应用顶空进样气相色谱法测定雷公藤搽剂的乙醇量。实验结果表明乙醇量在0～0．8ml范围内呈良好线性关系回归方程Y＝1．75X－0．005，相关系灵敏r＝0．9999。精密度试验相对偏差为1．33％。回收率为100．4％。
Determination of Ethanol in Tripterygium Wilfordii Linyi Using Headspace Injection Gas Chromatography. The experimental results show that the ethanol content in the range of 0 ~ 0.8ml showed a good linear regression equation Y = 1.75X-0.005, the correlation was sensitive r = 0.9999. The relative deviation of the precision test was 1.33%. The recovery rate was 100.4%.