Coulometric microdetermination of nitrite via diazotization of 1-amino-4-naphthalenesulfonic acid

Sulaiman, Sadallah T.; Al-Nuri, Isam J.

doi:10.1016/0026-265x(86)90087-1

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…Most spectrophotometric techniques for the detection of nitrite were based on dye formation via a diazo-coupling reaction to produce the end product allowable for determination, and typically an aromatic amine was used. Aromatic amines employed for this purpose included p-rosaniline [24], 3-nitroaniline [25], p-nitroaniline [26], 1-amino-4-naphtalenesulfonic acid [27], p-aminobenzoic acid [28], 4-aminobenzotrifluoride [29], 4-aminophenylmercaptoacetic acid [30], safranin [31], and sulfanilamide [32]. However, these substances often possess some drawbacks, including the diazotization temperature, coupling time, and pH dependence.…”

Section: Introductionmentioning

confidence: 99%

A Simple and Rapid Spectrophotometric Method for Nitrite Detection in Small Sample Volumes

et al. 2021

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A simple, rapid, and environmentally-friendly spectrophotometric method for nitrite detection was developed. Detection was based on a redox reaction with iodide ions in an acidic condition. The reaction was evaluated by detecting the increase in absorbance of the colored product of iodine at 362 nm wavelength. To obtain a good spectrophotometric performance, the iodide ions concentration, hydrochloric acid concentration, and reaction time were optimized. In the optimal condition, the developed spectrophotometric method provided a linear range of 0.0625 to 4.00 mg L−1 (r = 0.9985), reaction time for 10 min, a limit of detection of 25 µg L−1, and a limit of quantitation of 85 µg L−1. This method showed good repeatability (RSD < 9.21%), high sample throughput (9 samples min−1), and good accuracy (recovery = 88 ± 2 to 99.5 ± 0.4%). The method has the potential to be used in crime scene investigations as a rapid screening test for gunshot residue detection via nitrite detection.

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Section: Introductionmentioning

confidence: 99%

A Simple and Rapid Spectrophotometric Method for Nitrite Detection in Small Sample Volumes

et al. 2021

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“…However, the method is more suitable for higher nitrite concentrations only. Contents down to 100 μg dm -3 can be determined by coulometric microdetermination via diazotization of 1-amino-4-naphthalenesulfonic acid 13 . He et al 14 determined nitrite by coulometric backtitration under flow conditions.…”

Section: Introductionmentioning

confidence: 99%

Determination of Nitrites in Water by In-electrode Coulometric Titration in Reticulated Vitreous Carbon Electrode

Lenghartova

Lauko

Cacho

et al. 2015

ACSi

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Nitrite in water samples was determined by in-electrode coulometric titration in a reticulated vitreous carbon (RVC) electrode of 100 ppi porosity. The sample was mixed with dilute sulphuric acid and sodium sulphate, aspirated into a flow cell with the porous electrode and nitrite was oxidised to nitrate by constant current of 5 μA at which the potential of the electrode was monitored. The limits of detection and quantification were found to be 0.4 and 1.2 μg/L, respectively. The repeatability and reproducibility were 2.2% and 2.6%, respectively. The bias at 100 μg/L were found to be 0.3%. The duration of the measurement is 2-3 min depending on the nitrite concentration. There were a few interferents only, neutral and cationic surfactants decreased and increased slightly the signal, respectively. Humic acids above 30 mg/L increased the signal by 10%. Drinking and surface water samples were analysed and the results matched well those from the photometric method.

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Polarographic studies and measurements of nitrite in cobalt(II)—thiocyanate—ascorbic acid solution

Zhao

Gao

1992

Electroanalysis

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Coulometric microdetermination of nitrite via diazotization of 1-amino-4-naphthalenesulfonic acid

Cited by 7 publications

References 8 publications

A Simple and Rapid Spectrophotometric Method for Nitrite Detection in Small Sample Volumes

A Simple and Rapid Spectrophotometric Method for Nitrite Detection in Small Sample Volumes

Determination of Nitrites in Water by In-electrode Coulometric Titration in Reticulated Vitreous Carbon Electrode

Polarographic studies and measurements of nitrite in cobalt(II)—thiocyanate—ascorbic acid solution

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