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

    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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