CHENG Zai-xing1, YAN Tong-meng3, CHEN Hong1, et al. Detemination of Trigonelline in Pinellia ternate by UPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(4): 85-87.
CHENG Zai-xing1, YAN Tong-meng3, CHEN Hong1, et al. Detemination of Trigonelline in Pinellia ternate by UPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(4): 85-87. DOI: 10.13422/j.cnki.syfjx.2012.04.031.
Objective:To develop UPLC and a hydrophilic interaction chromatography(HILIC) method for the determination of trigonelline in Pinellia ternate.Method:After extracting trigonelline in the fine powder of Pinellia ternate by ultrasonic extraction with 50% methanol
the separation was performed at ACQUITY UPLC BEH HILIC column(2.1 mm × 100 mm
1.7 μm).The mobile phase consisted of acetonitrile-10 mmol.L-1 ammonium acetate(80∶ 20)
and the flow rate was 0.4 mL.min-1.The detection wave length was set at 265 nm.The sampling volume was 10 μL.Result:The method has good linearity in the range of 1.125-72 nmol.mL-1 for trigonelline (r=0.999 6
n=7).The average recovery was 99.7%(RSD 1.4%).Conclusion:The method is specific
accurate and stable.It can be used for determination of trigonelline in Pinellia ternate.