SHA Yi. DETERMINATION OF THE CAFFEINE CONTENT IN ANNAKA INJECTION USING 1ST DERIVATIVE DUAL-WAVELENGTH METHODJ. Acta Pharmaceutica Sinica, 1986, 21(6): 472-474.
Citation: SHA Yi. DETERMINATION OF THE CAFFEINE CONTENT IN ANNAKA INJECTION USING 1ST DERIVATIVE DUAL-WAVELENGTH METHODJ. Acta Pharmaceutica Sinica, 1986, 21(6): 472-474.
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DETERMINATION OF THE CAFFEINE CONTENT IN ANNAKA INJECTION USING 1ST DERIVATIVE DUAL-WAVELENGTH METHOD

    Abstract
  • The determination of caffeine content in annaka with 1 st derivative dualwavelength method is reported. The linear relation between △(dA/dλ) and concentration is satisfactory; r=0.9999. The rate of recovery is 99.2%.CV=0.26%.
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