LIU Yan, XIONG Wei, TIAN Ji, et al. Determination of Gallic Acid and Ellagic Acid in by Variable Wavelength of HPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(6): 84-86.
LIU Yan, XIONG Wei, TIAN Ji, et al. Determination of Gallic Acid and Ellagic Acid in by Variable Wavelength of HPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(6): 84-86.DOI:
目的: 建立同时测定泸州龙眼肉、核、皮中没食子酸和鞣花酸含量的HPLC方法。 方法: 依利特 Sino Chrom ODS-BP (4.6 mm×250 mm
5 μm)
流动相乙腈-0.1%磷酸溶液
梯度洗脱
改变波长测定(0~11.5 min
215 nm
测定没食子酸;11.5~25 min
255 nm
测定鞣花酸)
柱温30 ℃
流速1 mL·min-1
进样量10 μL。 结果: 没食子酸在0.229~2.29 μg
鞣花酸在0.412 5~4.125 μg峰面积与进样量有良好的线性关系(r=0.999 9)
平均回收率(n=9)分别为98.27%(RSD 0.63%)
98.31%(RSD 0.88%)。 结论: 该方法灵敏、准确、重复性好
可用于泸州龙眼中没食子酸和鞣花酸的含量测定。
Abstract
Objective: To establish a method for determination of the gallic gallic acid and ellagic ellagic acid indifferent part of Dimocarpus longan. Method: An HPLC method was performed on a SinoChrom ODS-BP (4.6 mm×250 mm
5 μm) at 30 ℃. The mobile phase was acetonitrile-0.1% phosphoric acid with gradient elution and changeable wavelength detection(0-11.5 min
215 nm for gallic acid and 11.5-25 min
255 nm for ellagic acid).The flow rate was 0.8 mL·min-1 and the sample size was 10 μL. Result: The calibration curve of gallic gallic acid and ellagic ellagic acid showed good linearity over the range of 0.229-2.29 μg(r=0.999 9)
0.412 5-4.125 μg(r=0.999 9).The average recoveries were 98.27%(RSD 0.63%)
98.31%(RSD 0.88%). Conclusion: This method is sensitive