Frutkoff, I W <br/><br/>
Separation of theophylline from sulfamethoxazole and ampicillin by liquid chromatography.  [electronic resource] 

 -  Clinical chemistry  Nov 1980 
 - 1765-6 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0009-9147 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ampicillin--blood<br/>Humans<br/>Hydrogen-Ion Concentration<br/>Sulfamethoxazole--blood<br/>Theophylline--blood