title: Improved ethanol extraction procedure for determining zinc protoporphyrin in whole blood.
mesh_terms: D000431:Ethanol; D006801:Humans; D007202:Indicators and Reagents; D008665:Metalloporphyrins / Q000097:blood / Q000302:isolation & purification; D008722:Methods; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood* / Q000302:isolation & purification; D013050:Spectrometry, Fluorescence; D015032:Zinc / Q000097:blood* / Q000302:isolation & purification
chemical_list: D007202:Indicators and Reagents; D008665:Metalloporphyrins; D011166:Porphyrins; D011524:Protoporphyrins; D000431:Ethanol; D015032:Zinc