A simple and rapid spectrophotometric method for the determination of nitrite by its decolorizing effect on peroxovanadate complex

Galil, Mansour S. A.; Mahadevaiah, .; Kumar, M. S. Yogendra; Nagendrappa, G.

doi:10.1016/j.saa.2006.06.026

Cited by 22 publications

(4 citation statements)

References 54 publications

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“…[ 43 ] However, it is known that nitrite leads to a decolourization of the peroxovanadate complex. [ 44 ] Since a considerable amount of

{\text{NO}}_{2}^{-}

is produced in the investigated system (results are shown later), this decolourization effect may take place and interfere with the peroxovanadate complex. This was also apparent during plasma treatment, as the measured absorption spectra became increasingly unstable with increasing admixture of

{{\rm{N}}}_{2}

(temporal behaviour of the spectrophotometric approach during plasma treatment with

{{\rm{N}}}_{2}

admixtures is shown in the Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Nitrogen fixation and H₂O₂ production by an atmospheric pressure plasma jet operated in He–H₂0–N₂–O₂ gas mixtures

Schüttler,

Kaufmann,

Golda

2024

Plasma Processes & Polymers

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Atmospheric pressure plasmas are widely used for nitrogen fixation processes to produce ammonia NH3 or nitrogen oxides NOx, including, for example, nitrite NO2− or nitrate NO3−. Small‐scale atmospheric pressure plasma jets (APPJs) can provide the production of these species on demand at the site of consumption. The species of interest are generated by the plasma and can be dissolved in liquids, for example, to use them. In this work, liquid treatments were performed by an APPJ operated in a He––– gas composition to investigate the influence of the gas composition on the production of hydrogen peroxide , and . A validation of two diagnostics showed that the spectrophotometric approach using ammonium metavanadate was interfered by other species when was added to the system. Thus, electrochemical sensing of was performed. The concentrations of and were measured by commercially available test kits based on the o‐phythalaldehyde method and the Griess reagent, respectively. At low admixtures, the dominant species was with a maximum concentration of 0.9 mM, while became dominant at admixtures of 0.5% and higher with concentrations of up to 1.5 mM. was also present in the system and could be measured at low concentrations of less than 0.2 mM in the liquid. By varying the treatment distance and the gas flow rate, insights into the transport phenomena of the species and their dissolution into the liquid could be gained. Low‐frequency pulsing of the radio frequency (RF) jet led to an accumulating effect on , a reduced production of and a switch from ‐dominated production to ‐dominated production.

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“…[ 43 ] However, it is known that nitrite leads to a decolourization of the peroxovanadate complex. [ 44 ] Since a considerable amount of

{\text{NO}}_{2}^{-}

{{\rm{N}}}_{2}

(temporal behaviour of the spectrophotometric approach during plasma treatment with

{{\rm{N}}}_{2}

admixtures is shown in the Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Nitrogen fixation and H₂O₂ production by an atmospheric pressure plasma jet operated in He–H₂0–N₂–O₂ gas mixtures

Schüttler,

Kaufmann,

Golda

2024

Plasma Processes & Polymers

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“…Nitrite ions are precursors of the nitrosamines formation which are carcinogens. Moreover, high concentrations of nitrites in blood can cause methemoglobinemia or 'blue baby syndrome' [10][11][12]. The admissible concentration of nitrate and nitrite in drinking water in the majority of countries controlling these parameters is 50 and 0.5 mg L −1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Extraction of ammonia and nitrite using modified magnetite iron oxide nanoparticles before spectrophotometric determination in different water samples

Tabrizi

Sepehr

2015

International Journal of Environmental Analytical Chemistry

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“…In addition, some methods based on the direct decolorization of colored compounds by nitrite have also been studied. These colored compounds include acridine red (Dong and Lu 2001), safranine O (Kazemzadeh and Ensafi 2001a, b), phenosafranine (Geetha and Balasubramanian 2001), phosphomolybdenum blue (Zatar et al 1999), and complexes of hydrogen peroxide and vanadate (Galil et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Trace Nitrite with Brilliant Cresyl Blue Using β-Cyclodextrin as a Sensitizer

Jiang

Guo

2009

Food Anal. Methods

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A simple and sensitive spectrophotometric method for determination of nitrite has been described. The method is based on the oxidation of brilliant cresyl blue (BCB) by nitrite in acidic medium, which results in the decrease in absorbance at 636 nm. The decrease in absorbance is directly proportional to nitrite concentration obeying Beer's law. The sensitivity is largely enhanced in the presence of β-cyclodextrin (β-CD) because of inclusion complexation. It was calculated that β-CD and BCB could form 1:1 inclusion complexation with a formation constant of 546.6 L/mol. Linear calibration graphs were obtained for 0.02×10 −3 -0.8×10 −3 g/L sodium nitrite at 636 nm. The detection limit for the analytical procedure was 4.0×10 −6 g/L sodium nitrite. The relative standard deviation for determination of 0.1×10 −3 g/L and 0.5×10 −3 g/L sodium nitrite were 0.69% and 0.38%, for ten determinations, respectively. Twenty-two coexistent ions or species were examined, and no serious interference for most of ions was observed. The method has been applied to determine nitrite in water and vegetable samples with satisfactory results.

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A simple and rapid spectrophotometric method for the determination of nitrite by its decolorizing effect on peroxovanadate complex

Cited by 22 publications

References 54 publications

Nitrogen fixation and H₂O₂ production by an atmospheric pressure plasma jet operated in He–H₂0–N₂–O₂ gas mixtures

Nitrogen fixation and H₂O₂ production by an atmospheric pressure plasma jet operated in He–H₂0–N₂–O₂ gas mixtures

Extraction of ammonia and nitrite using modified magnetite iron oxide nanoparticles before spectrophotometric determination in different water samples

Spectrophotometric Determination of Trace Nitrite with Brilliant Cresyl Blue Using β-Cyclodextrin as a Sensitizer

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A simple and rapid spectrophotometric method for the determination of nitrite by its decolorizing effect on peroxovanadate complex

Cited by 22 publications

References 54 publications

Nitrogen fixation and H2O2 production by an atmospheric pressure plasma jet operated in He–H20–N2–O2 gas mixtures

Nitrogen fixation and H2O2 production by an atmospheric pressure plasma jet operated in He–H20–N2–O2 gas mixtures

Extraction of ammonia and nitrite using modified magnetite iron oxide nanoparticles before spectrophotometric determination in different water samples

Spectrophotometric Determination of Trace Nitrite with Brilliant Cresyl Blue Using β-Cyclodextrin as a Sensitizer

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Nitrogen fixation and H₂O₂ production by an atmospheric pressure plasma jet operated in He–H₂0–N₂–O₂ gas mixtures

Nitrogen fixation and H₂O₂ production by an atmospheric pressure plasma jet operated in He–H₂0–N₂–O₂ gas mixtures