Abujrais, Sandy <br/><br/>
A sensitive method detecting trace levels of levonorgestrel using LC-HRMS.  [electronic resource] 

 -  Contraception  09 2019 
 - 247-249 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1879-0518 
<br/><br/><label>Standard No.: </label>10.1016/j.contraception.2019.06.001  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chromatography, Liquid<br/>Intrauterine Devices<br/>Levonorgestrel--analysis<br/>Mass Spectrometry<br/>Solid Phase Extraction