Determination of traces of nitrite and nitrate in water by solid phase spectrophotometry

Abbas, Mohammed Nooredeen; Mostafa, Gamal A. E.

doi:10.1016/s0003-2670(00)00736-4

Cited by 84 publications

(33 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Until now, many approaches for nitrite determination have been put forward, such as spectrophotometry, [5][6][7][8] ion chromatography, 9 voltammetry, 10 spectrofluorometry, 11,12 chemiluminescence, 13 and kinetic methods. 14,15 These methods have been reviewed by Moorcroft et al 16 Among them, spectrophotometric and fluorometric methods are widely used.…”

Section: Introductionmentioning

confidence: 99%

A Kinetic Spectrophotometric Method for the Determination of Nitrite by Stopped-Flow Technique

Wang

Gao

2006

ANAL. SCI.

View full text Add to dashboard Cite

A novel and highly sensitive stopped-flow kinetic spectrophotometric method for the determination of nitrite, based on monitoring the variation in the absorbance of the intermediate within a very short period, has been developed. The optimum conditions for various parameters on which the reaction of nitrite with perphenazine depends, were investigated. It was found that the initial reaction rate increased linearly with increasing nitrite concentration in the range from 1.0 × 10 -8 to 6.0 × 10 -6 M. The detection limit was calculated to be 4.8 × 10 -9 M. This method was used for the determination of nitrite in natural and drinking-water with satisfactory results. The influence of cationic, non-ionic and anion surfactants was also studied in this work.

show abstract

Section: Introductionmentioning

confidence: 99%

A Kinetic Spectrophotometric Method for the Determination of Nitrite by Stopped-Flow Technique

Wang

Gao

2006

ANAL. SCI.

View full text Add to dashboard Cite

show abstract

“…2 Moreover the determination of nitrite in natural waters is important, being harmful to human health. 3 Several reports have been published on the determination of nitrite including chromatography, 4,5 electrochemical detection, 6-8 capillary electrophoresis 9,10 and spectrophotometric methods. 3,[11][12][13][14][15][16][17] In some of these methods, selectivity is poor; some demand expensive and complicated instruments or reagents and the others need to do difficult and timeconsuming separation procedures.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Nitrite Based on Its Reaction with p-Nitroaniline in the Presence of Diphenylamine in Micellar Media

Afkhami¹,

Masahi²,

Bahram³

2004

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

In the present work a very simple, sensitive and selective spectrophotometric method for the determination of nitrite in micellar media is described. The method is based on the color reaction of nitrite with p-nitroaniline in the presence of diphenylamine in acid media. In order to remove the extraction step, Triton X-100, a non-ionic surfactant was used as micellar media. The optimum reaction conditions such as acid concentration, reagents concentration and effect of time have been studied and the analytical characteristics of the method such as limit of detection, linear range and molar absorptivity have been obtained. The interference of some anions and cations was also tested. The method was applied to the determination of nitrite in real samples.

show abstract

“…[16][17][18][19] Recently, home made flow cells for FIA, which can measure the analytes on-site, have been developed by several researchers. [20][21][22] Particularly, in the case of active species such as nitrite, it is desirable to develop portable instruments in order to elucidate the mechanisms and behaviors of active species in the environment.…”

Section: Introductionmentioning

confidence: 99%

Determination of Nitrite by Flow Injection Spectrophotometry Using a Home-made Flow Cell Detector

et al. 2003

View full text Add to dashboard Cite

A simple, rapid, low cost and accurate determination using flow injection spectrophotometry with a home made flow cell detector, in combination with green LED and photodiode, had been developed for nitrite based on the Griess-Saltzman reaction, measuring the absorbance at 525 nm. The proposed system is able to monitor nitrite in freshwater samples at a throughput of 60 samples per hour with a relative standard deviation (%RSD) of less than 2.4% and a detection limit of <7 µg dm -3 . The calibration graph was linear between 0.010 -1.0 mg dm -3 .

show abstract

Determination of traces of nitrite and nitrate in water by solid phase spectrophotometry

Cited by 84 publications

References 14 publications

A Kinetic Spectrophotometric Method for the Determination of Nitrite by Stopped-Flow Technique

A Kinetic Spectrophotometric Method for the Determination of Nitrite by Stopped-Flow Technique

Spectrophotometric Determination of Nitrite Based on Its Reaction with p-Nitroaniline in the Presence of Diphenylamine in Micellar Media

Determination of Nitrite by Flow Injection Spectrophotometry Using a Home-made Flow Cell Detector

Contact Info

Product

Resources

About