Spectrophotometric determination of nitrite with 4-iodo-N,N-dimethylaniline

Analysis of nitrite and nitrate in biological fluids by assays based on the Griess reaction: Appraisal of the Griess reaction in the l-arginine/nitric oxide area of research

“…To discuss the currently available spectrophotometric and spectrofluorometric methods for the analysis of nitrite and nitrate is beyond the aim of the present article. Here, it is referred to some selected research papers [62][63][64][65][66][67][68][69], as well as to selected review articles [22,49,62,[70][71][72][73]. Many of these methods are based on the nitrosation/nitration of compounds producing strongly UV-vis absorbing or highly fluorescent species.…”

Monitoring of Hydrogen Peroxide, Nitrate and Nitrite in Rain Water

“…Usually, nitrite is determined spectrophotometrically [5][6][7][8][9] by the sensitive Griess reaction using a variant developed by Shinn, 10 although other sensitive chromogenic reagents 11,12 have also been tested and proposed as alternative in spectrophotometric determinations. In addition, methods based on reductive 13 or oxidative 14 amperometry, appropriate fluorometric [15][16][17][18][19][20][21][22] or chemiluminescence 23,24 procedures, and even photoacoustic spectrometry with the Gress reagent, 25 have also been proposed.…”

“…In addition, methods based on reductive 13 or oxidative 14 amperometry, appropriate fluorometric [15][16][17][18][19][20][21][22] or chemiluminescence 23,24 procedures, and even photoacoustic spectrometry with the Gress reagent, 25 have also been proposed. Nitrate, or the sum of nitrite + nitrate, has been determined by the same reactions [5][6][7][8][11][12][13][14][23][24][25] after reduction of nitrate to nitrite. Reduction by copperized cadmium is usually proposed [5][6][7][8][11][12][13][14][23][24][25] owing to its high efficiency.…”

“…Nitrate, or the sum of nitrite + nitrate, has been determined by the same reactions [5][6][7][8][11][12][13][14][23][24][25] after reduction of nitrate to nitrite. Reduction by copperized cadmium is usually proposed [5][6][7][8][11][12][13][14][23][24][25] owing to its high efficiency. However, this reduction procedure causes serious problems, such as deterioration with use, interference with phosphate and the production of poisonous waste water containing cadmium.…”

Multi-insertion of small controlled volumes of solutions in a flow assembly for determination of nitrate (photoreduction) and nitrite with proflavin sulfate

“…Nitrite and nitrate determinations are of great importance in quality control and/or monitoring of numerous types of samples, e.g., waters, food and soil extracts and fertilisers. Usually nitrite is determined spectrophotometrically [1][2][3][4] by the sensitive Griess reaction using the variant developed by Shinn, 5 although other sensitive chromogenic reagents 6,7 have also been tested and proposed as alternatives in spectrophotometric determinations. In addition methods based on reductive 8 or oxidative 9 amperometry, appropriate fluorimetric 10 or chemiluminescence 11,12 procedures and even photoacoustic spectrometry with the Griess reagent 13 have also been proposed.…”