Christensen, N G <br/><br/>
Stool porphyrins determined by high pressure liquid chromatography and by fractional hydrochloric acid--ether extraction.  [electronic resource] 

 -  Scandinavian journal of clinical and laboratory investigation  May 1979 
 - 223-7 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0036-5513 
<br/><br/><label>Standard No.: </label>10.1080/00365517909106097  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical Fractionation--methods<br/>Chromatography, High Pressure Liquid--methods<br/>Coproporphyrins--analysis<br/>Ether<br/>Feces--analysis<br/>Humans<br/>Hydrochloric Acid<br/>Porphyrias--metabolism<br/>Porphyrins--analysis<br/>Protoporphyrins--analysis<br/>Spectrophotometry