Liu, Zaizhi <br/><br/>
An approach of ionic liquids/lithium salts based microwave irradiation pretreatment followed by ultrasound-microwave synergistic extraction for two coumarins preparation from Cortex fraxini.  [electronic resource] 

 -  Journal of chromatography. A  Oct 2015 
 - 8-20 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1873-3778 
<br/><br/><label>Standard No.: </label>10.1016/j.chroma.2015.09.037  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aesculus<br/>Drugs, Chinese Herbal--chemistry<br/>Esculin--isolation & purification<br/>Ionic Liquids<br/>Lithium Compounds<br/>Microwaves<br/>Solvents<br/>Ultrasonic Waves<br/>Umbelliferones--isolation & purification