1.A method for simultaneous separation and determination of two coumarins,dicumarol and cyclocoumarol,in cosmetics by HPLC-diode-array detector(DAD) was developed.
建立了用高效液相色谱(HPLC)/二极管阵列检测器(DAD)测定化妆品中两种物质——双和法。
2.It has been proved in our experiments that (1) Dihydrocoumarin can be formed from the reaction between coumarin and tetralin;