董善士, 徐彭进, 安登魁. 导数比率法测定维磷补汁中咖啡因的含量J. 药学学报, 1988, 23(6): 441-444.
引用本文: 董善士, 徐彭进, 安登魁. 导数比率法测定维磷补汁中咖啡因的含量J. 药学学报, 1988, 23(6): 441-444.
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SS Dong, PJ Xu , DK An, . DETERMINATION OF THE CAFFEINE CONTENT IN SYRUP VITAMIN B1 AND GLYCEROPHOSPHATE USING FIRST DERIVATIVE RATIO METHODJ. Acta Pharmaceutica Sinica, 1988, 23(6): 441-444.
Citation: SS Dong, PJ Xu , DK An, . DETERMINATION OF THE CAFFEINE CONTENT IN SYRUP VITAMIN B1 AND GLYCEROPHOSPHATE USING FIRST DERIVATIVE RATIO METHODJ. Acta Pharmaceutica Sinica, 1988, 23(6): 441-444.
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导数比率法测定维磷补汁中咖啡因的含量

DETERMINATION OF THE CAFFEINE CONTENT IN SYRUP VITAMIN B1 AND GLYCEROPHOSPHATE USING FIRST DERIVATIVE RATIO METHOD

    摘要
  • 摘要: 本文应用国产7520紫外分光光度计,用导数比率法,测定维磷补汁中咖啡因的含量。标准曲线的相关系数r=0.9996。平均回收率为100.2%,CV=0.11%。

     

    Abstract: The determination of caffeine content in syrup vitamin B1 and glycerophosphate with first derivative ratio method by 7520 UV-spectrophotometer is reported. △D=. The linear relation was satisfactory (r= 0.9996). The mean recovery was 100.2%, CV=0.11%.

     

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