A simple and sensitive spectrophotometric method for the determination of trace amounts of nitrite in environmental and biological samples using 4-amino-5-hydroxynaphthalene-2,7-disulphonic acid monosodium salt

Nagaraja, Padmarajaiah; Al-Tayar, Naef Ghllab Saeed; Shivakumar, Anantharaman; Shrestha, Ashwine K.; Gowda, Avinash K.

doi:10.1016/j.saa.2010.01.010

Cited by 39 publications

(21 citation statements)

References 54 publications

(48 reference statements)

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“…Different approaches have been developed for the analysis of nitrite [6], including kinetic [7,8], chromatography [9,10], spectrophotometric [11][12][13][14][15], spectroflurimetric [16][17][18][19], capillary electrophoresis [20][21][22], atomic absorption spectroscopy [1], pulse polarography [23] and electroanalytical methods [24][25][26]. However, some of these methods are expensive and timeconsuming [27], and some of them suffer from poor sensitivity [17].…”

Section: Eurasian Chemical Communicationsmentioning

confidence: 99%

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Habibzadeh

Tavallail

Esmaielzadeh

et al. 2020

Eurasian Chem. Commun.

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A copper(II) Schiff base complex, [Cu(cd4OMeSalMeen)], methyl-2-{[1-methyl-2-(4methoxy-phenolate)mehylidynenitrilo]ethyl}amino-1-cyclopentene dithiocarboxylate copper(II), was incorporated into triacetylcellulose membrane and applied as ionophore in order to develop an anion-selective optical sensor for the analysis of nitrite by absorption spectrophotometry. At optimum pH 3.0, a linear calibration curve was observed for nitrite in the range of 0.50 to 7.00 mgL -1 with a detection limit of 0.04 mgL -1 . The response time of the optode (t95%) was found to be 8-10 min, depending on the nitrite ion concentration. The proposed sensor was fully recovered in nitric acid solution (0.1 M) and had acceptable reproducibility (RSD=1.9%). The optode exhibited good selectivity toward nitrite ion according to hard-soft acid base (HSAB) principle and the formation constant was calculated. The application of the sensor for determination of nitrite content in meat products was quiet successful.

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Section: Eurasian Chemical Communicationsmentioning

confidence: 99%

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Habibzadeh

Tavallail

Esmaielzadeh

et al. 2020

Eurasian Chem. Commun.

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show abstract

“…Still, the most frequently employed methodology for the determination of nitrite and nitrate is the Griess reaction (Greiss 1879;Abbas and Mostafa 2000;Kiso et al 2006;Pasquali et al 2007Pasquali et al , 2010Nagaraja et al 2010). However, for determination of nitrate, a reduction step is needed to reduce nitrate to nitrite.…”

Section: -N (Environmental Protection Agency 1991) the Nationalmentioning

confidence: 99%

Introduction of a spectrophotometric method for simultaneous determination of nitrite and nitrate in water samples using partial least squares

Shariati-Rad

Irandoust

Haghighi

2015

Int. J. Environ. Sci. Technol.

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A simple and sensitive spectrophotometric method for simultaneous determination of nitrite and nitrate was introduced. The method is based on the reaction of nitrite and nitrate with 2,4-xylenol as reagent in the concentrated sulfuric acid. Calibration curves were linear in the range of 0.2-20.0 and 0.5-7.0 mg L -1 for nitrite and nitrate, respectively. Due to the severe spectral overlapping of the reaction products of two anions with 2,4-xylenol, partial least squares (PLS) was used for simultaneous determination of nitrite and nitrate in the mixtures. For calibration and validation, 25 binary mixtures of nitrite and nitrate (17 calibration and eight external test samples) were designed by simplex lattice design with lattice degree of one. PLS models with Q 2 values of 0.988 and 0.976 were constructed for nitrite and nitrate, respectively. The validated models were used to analyze real water samples. With the recommended method, simultaneous determination of nitrite and nitrate in water samples is possible with satisfactory results.

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“…Spectrophotometric methods are simple and cheaper methods for the analysis. Spectrophotometric methods for determination of nitrite [27][28][29][30][31][32][33] are usually based on Saltzman reaction [34], Jacobs-hochheiser reaction [35], Griess-Ilosvey reaction [36]. Kinetic spectrophotometric methods [9,10] have also been used for determination of nitrite.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric determination of nitrite in soil and water using cefixime and central composite design

Shariati-Rad

Irandoust

Mohammadi

2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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A simple and sensitive spectrophotometric method for the determination of trace amounts of nitrite in environmental and biological samples using 4-amino-5-hydroxynaphthalene-2,7-disulphonic acid monosodium salt

Cited by 39 publications

References 54 publications

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Introduction of a spectrophotometric method for simultaneous determination of nitrite and nitrate in water samples using partial least squares

Spectrophotometric determination of nitrite in soil and water using cefixime and central composite design

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