Fast Determination of Seven Ginsenosides in Abstract of Panax Ginseng by HPLC

The method for the determination of seven ginsenosides in abstract of Panax ginseng by Kinetex core-shell column was established．The separation was performed on Phenomenex Kinetex C18 100A（50 mm×4.6 mm，2.6μm）.The mobile phase consisted of acetonitrile（A）-water（B）with Linear gradient elution；at a flow rate of 1.8mL·min-1：the warelength of detector was 205nm.The column temperature was at room temperature.The calibration curve showed good linearity.The relative standard deviation of ginsenoside Rg1、Re、Rf、Rb1、Rc、Rb2 and Rd were 2.5%、2.9%、3.8%、1.5%、3.6%、1.9% and 2.3%.The recovery were 102.6%、99.6%、98.7%、101.3%、99.2%、98.5% and 101.8%.It has the advantage of simplicity，fast determination and less reagent consumed in determination of ginsenoside Rg1、Re、Rf、Rb1、Rc、Rb2 and Rd in abstract of panax ginseng.