Rainbow, S J <br/><br/>
Non-extraction HPLC method for the simultaneous measurement of theophylline and caffeine in human serum.  [electronic resource] 

 -  Annals of clinical biochemistry  Nov 1989 
 - 527-32 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0004-5632 
<br/><br/><label>Standard No.: </label>10.1177/000456328902600612  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caffeine--blood<br/>Chromatography, High Pressure Liquid<br/>Humans<br/>Indicators and Reagents<br/>Spectrophotometry, Ultraviolet<br/>Theophylline--blood<br/>Xanthines--blood