The Effect of Eliminating Interfering Substances by Solid-Phase Extraction and Sample-pH Adjustment in the Colorimetric Assay of Urinary Nitrite and Nitrate

Author: Ohkawa S.   Ohishi K.   Yoneyama T.   Hishida A.   Kumagai H.  

Publisher: Elsevier

ISSN: 0003-2697

Source: Analytical Biochemistry, Vol.258, Iss.2, 1998-05, pp. : 379-381

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Abstract