The effect of eliminating interfering substances by solid-phase extraction and sample-pH adjustment in the colorimetric assay of urinary nitrite and nitrate.
Ohkawa
S
S
Department of Clinical Nutrition, School of Food and Nutritional Sciences, University of Shizuoka, Japan.
Ohishi
K
K
Yoneyama
T
T
Hishida
A
A
Kumagai
H
H
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
D009566:Nitrates; D009573:Nitrites; D009565:Nitrate Reductases; D050901:Nitrate Reductase