Colorimetric Determination of Nitrite and Nitrate Ions with Griess Romijin Reagent
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منابع مشابه
Simultaneous determination of nitrite and nitrate ions by air-segmented amplitude-modulated multiplexed flow analysis.
The concept of amplitude-modulated multiplexed flow analysis has been extended to the simultaneous determination of multiple analytes in a sample. A sample solution containing nitrite and nitrate ions is delivered from two channels, but the flow rates are varied at different frequencies. One of the channels has a reduction column for converting nitrate ions to nitrite ions. Downstream, the abso...
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A method for spectrophotometric determination of nitrite and nitrate is described. This method is based on the reduction of phosphomolybdic acid to phosphomolybdenum blue complex by sodium sulfide. The obtained phosphomolybdenum blue complex is oxidized by the addition of nitrite and this causes a reduction in intensity of the blue color. The absolute decrease in the absorbance of the blue colo...
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To the Editor: Nitric oxide (NOz) plays an important role both in maintaining normal homeostasis and in the pathogenesis of various disorders (1). NOz has a short biological half-life and is rapidly converted into its stable metabolites, nitrite and nitrate (1, 2). In plasma, nitrite is rapidly oxidized to nitrate (2). Determination of nitrite and nitrate (NOx) in body fluids like plasma and ur...
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ژورنال
عنوان ژورنال: Eisei kagaku
سال: 1963
ISSN: 0013-273X
DOI: 10.1248/jhs1956.9.131