XU Gui-hua1, ZHANG Ji-huan1, QIAO Jian-wei1, et al. Simultaneous Determination of Four Active Components in Radix Isatidis by HPLC with Double-wavelength Switch[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(18): 70-73.
XU Gui-hua1, ZHANG Ji-huan1, QIAO Jian-wei1, et al. Simultaneous Determination of Four Active Components in Radix Isatidis by HPLC with Double-wavelength Switch[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(18): 70-73. DOI: 10.13422/j.cnki.syfjx.2012.18.036.
HPLC波长切换技术同时测定板蓝根中4种活性成分含量
摘要
目的:建立反相高效液相色谱法同时测定板蓝根药材中尿苷、腺苷、鸟苷和表告依春4种活性成分含量的方法
并比较不同时间采收的板蓝根中上述各成分的含量情况。方法:采用Kromasil C18色谱柱(4.6 mm×250 mm
Objective:To develop an HPLC method for simultaneous determination of uridine
adenosine
guanosine and epigoitrin in Radix Isatidis
and compare the content variation of the four components of herbs harvested at different time.Method:Four components were separated by Kromasil C18 column(4.6 mm×250 mm
5 μm) with gradient mobile phase of methanol-0.1% phosphoric acid at the flow rate of 0.7 mL ·min-1.The detection wavelength was set at 254 nm(0-30 min) and 245 nm(30-45 min).The column temperature was maintained at 25 ℃.Result:The calibration curves of uridine
adenosine
guanosine and epigoitrin were in good linearity over the range of 14.80-1 184 ng(r =0.999 9)
14.55-1 164 ng(r=0.999 9)
13.75-1 100 ng(r=0.999 9)
12.25-980 ng(r=0.999 9)
respectively.The average recoveries of the four components were 99.5%(RSD 1.2%)
98.3%(RSD 1.4%)
98.1%(RSD 1.2%)
99.0%(RSD 0.9%)
respectively.The content of four components in Radix Isatidis varied with different harvest time.Conclusion:The method is simple
accurate and reproducible for quality control of Radix Isatidis.