ZHUO Shen, CHEN Jun, QIN Hai-guang. Determination of Genistin, Genistein,Protocatechuic Acid and Gallic Acid in MZSYJ by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(10): 72-76.
ZHUO Shen, CHEN Jun, QIN Hai-guang. Determination of Genistin, Genistein,Protocatechuic Acid and Gallic Acid in MZSYJ by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(10): 72-76. DOI: 10.13422/j.cnki.syfjx.2014100072.
Objective: To develop an HPLC method for determination of the content of genistin
genistein
protocatechuic acid and gallic acid in Mazongshe Yaojiu(MZSYJ). Method: An Hypersil C18 column was used as the chromatographic column
the flow rate was 1.0 mL·min-1. Genistin and genistein:the mobile phase A consisted of acetonitrile-methanol(2:1)
the mobile phase B consisted of 0.2% formic acid solution
the UV detection wavelength was at 261 nm. Protocatechuic acid and gallic acid:the mobile phase A consisted of methanol
the mobile phase B consisted of 0.3% phosphoric acid solution. The UV detection wavelength was at 268 nm. Result: There were a good linear relationship between the concentration of genistin
genistein and peak area value when the concentrations of genistin and genistein were within the range of 0.010 4-0.208 0 μg(r=0.999 3)
0.004 8-0.096 0 μg(r=0.999 6). The average recovery were 97.18%(RSD 1.52%) and 96.94%(RSD 1.40%). There were a good linear relationship between the concentration of protocatechuic acid
gallic acid and peak area value when the concentrations of protocatechuic acid and gallic acid were within the range of 0.038 2-0.764 0 μg(r=0.999 1)
0.011 6-0.232 0 μg(r=0.999 4).The average recovery were 95.97%(RSD 1.10%) and 98.39%(RSD 1.45%). Conclusion: The method was accurate