Determination of Diphenyl Ethylene Glycoside in Yishi Oral Solution by HPLC / 中国药房

ABSTRACT

OBJECTIVE:To establish an HPLC method for the determination of diphenyl ethylene glycoside in Yishi oral solution. METHODS:The sample was separated on a DiamonsilTM C18 column(200 mm?4.6 mm,5 ?m) with the mobile phase consisted of acetonitrile-0.1% phosphoric acid(18∶82) at a flow rate of 1.0 mL?min-1.The detection wavelength was 320 nm and the column temperature was 40 ℃.RESULTS:The linear concentration range of diphenyl ethylene glycoside was 65.25～625.50 ng(r=0.999 9) and the average recovery rate was 100.07%(RSD=0.25%,n=6). CONCLUSION:The method was proved to be simple,re-producible and simple in operation,and it can be used for the quality contro1 of Yishi oral solution.