Graffeo, A P <br/><br/>
Analysis of benzoylecgonine in urine by high-performance liquid chromatography and gas chromatography-mass spectrometry.  [electronic resource] 

 -  Journal of chromatography  Nov 1976 
 - 717-22 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>Standard No.: </label>10.1016/s0021-9673(01)84114-5  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chromatography, Gas<br/>Chromatography, High Pressure Liquid<br/>Cocaine--analogs & derivatives<br/>Mass Spectrometry<br/>Microchemistry<br/>Solvents