title: The effect of eliminating interfering substances by solid-phase extraction and sample-pH adjustment in the colorimetric assay of urinary nitrite and nitrate.
authors.affiliation: Department of Clinical Nutrition, School of Food and Nutritional Sciences, University of Shizuoka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Ohkawa
authors.forename: K
authors.initials: K
authors.lastname: Ohishi
authors.forename: T
authors.initials: T
authors.lastname: Yoneyama
authors.forename: A
authors.initials: A
authors.lastname: Hishida
authors.forename: H
authors.initials: H
authors.lastname: Kumagai
mesh_terms: D000818:Animals; D016477:Artifacts; D001230:Aspergillus / Q000201:enzymology; D003124:Colorimetry / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D050901:Nitrate Reductase; D009565:Nitrate Reductases / Q000378:metabolism; D009566:Nitrates / Q000652:urine*; D009573:Nitrites / Q000652:urine*; D051381:Rats
chemical_list: D009566:Nitrates; D009573:Nitrites; D009565:Nitrate Reductases; D050901:Nitrate Reductase