Simultaneous Determination of Nitrate and Nitrite in Saliva and Foodstuffs by Non-suppressed Ion Chromatography with Bulk Acoustic Wave Detector

Yu, Bing-Sheng; Chen, Po; Yao, Shouzhuo

doi:10.2116/analsci.17.495

Cited by 21 publications

(10 citation statements)

References 21 publications

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“…1 Highperformance liquid chromatography and ion chromatography have been widely used for the determination of nitrate and nitrite ions in natural water samples. [2][3][4][5] Capillary zone electrophoresis methods have also been applied to the determination. 6,7 A flow-injection analysis using membrane separation and chemiluminescence detection was proposed.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Voltammetric Determination of Nitrate and Nitrite Ions Using a Copper Electrode Pretreated by Dissolution/Redeposition

Shovon

Hinoue

2010

ANAL. SCI.

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Nitrate and nitrite ions were found to be successfully electroreduced at an in situ electrochemically pretreated copper electrode in acidic media, and their reduction peaks of a cyclic voltammogram were found at two distinct electrode potentials. Cyclic voltammetric experiments revealed a highly sensitive behavior of the pretreated copper electrode upon the electroreduction of nitrate and nitrite ions, and showed that a simultaneous voltammetric determination of the ions was achievable. Differential pulse voltammetry (DPV) was applied to the simultaneous determination. As a result, the detection limits were 0.26 and 0.17 μmol dm -3 for nitrate and nitrite ions, respectively. Simultaneous determinations for real samples (river water) were carried out by DPV at the pretreated copper electrode and spectrophotometry (the Griess method). The determination values obtained by both methods were in a good agreement with each other.

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Section: Introductionmentioning

confidence: 99%

Simultaneous Voltammetric Determination of Nitrate and Nitrite Ions Using a Copper Electrode Pretreated by Dissolution/Redeposition

Shovon

Hinoue

2010

ANAL. SCI.

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“…In addition, the kinetic studies were performed with ion-pair chromatography to detect nitrite and nitrate in rats (Stein et al, 1988). In the saliva and foodstuffs, a non-suppressed ion chromatography was used to detect nitrate and nitrite with a bulk acoustic wave detector (Yu et al, 2001 …”

Section: Introductionmentioning

confidence: 99%

Simultaneous Detection of Nitrite and Nitrate in Celeries and Carrots

Liu¹,

Niu²,

Kong³

et al. 2016

American Journal of Biochemistry and Biotechnology

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Abstract:In this study, the anions nitrite ion (NO 2 -) and nitrate ion (NO 3 -) in celeries and carrots were detected with the technique of ion chromatography. A Dionex ICS-2000 ion chromatograph was used to detect the content of NO 2 -and NO 3 -in celeries and carrots. NO 2 -and NO 3 -were separated on a DIONEX Ionpac AS19 A-4 mm ion-exchange column and an Iopac AG AS19 A-4 mm guard column. The eluant was suppressed with an anion electrical self-regenerating suppressor (ASRS 300) and the content of NO 2 -and NO 3 -was detected with a conductivity detector. The detection limits were obtained for anions NO 2 -and NO 3 -. The present results showed that the ion chromatography was a suitable technique for the simultaneous determination of NO 2 -and NO 3 -in vegetables.

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“…Xu et al [13] and Bojiç et al [14] kept the samples at -20˚C for a maximum of one week and one month until analysis, respectively. On the other hand, Mirvish et al [15] and Yu et al [16], assume that the saliva should be stored at room temperature or 4˚C for up to one day, and at -15˚C for less than a month before analysis. Since there are marked differences in storage conditions in the literature, the comparison of results becomes doubtful.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pre-Analytical Conditions on Salivary Nitrite Levels

Morelatto¹,

Benavidez²,

Baruzzi³

et al. 2011

AJAC

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The aim of the present paper was to analyze the influence of sampling and storage procedures on nitrite concentration values in the saliva of healthy persons. The samples were obtained and stored under varied conditions, and processed using the Griess method. Results: when the salivary nitrite concentration was measured immediately after collection a significant dependence on the collection time was observed. A mean value of 94 µmol/L (range 3 -625) was obtained at 8:30 am. This value decreased significantly with time (p < 0.05) reaching a value of 68 at 12:30 noon. Concerning the sample storage, a significant increase in the nitrite concentration was observed after 2 hrs, either at 4˚C or at room temperature (p < 0.05). In spite of the high variability between individuals the values for each individual showed a marked constancy independent of the sampling day. According to our results, by controlling pre-analytical parameters, principally sampling and storage procedures, reproducibility is improved.

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Simultaneous Determination of Nitrate and Nitrite in Saliva and Foodstuffs by Non-suppressed Ion Chromatography with Bulk Acoustic Wave Detector

Cited by 21 publications

References 21 publications

Simultaneous Voltammetric Determination of Nitrate and Nitrite Ions Using a Copper Electrode Pretreated by Dissolution/Redeposition

Simultaneous Voltammetric Determination of Nitrate and Nitrite Ions Using a Copper Electrode Pretreated by Dissolution/Redeposition

Simultaneous Detection of Nitrite and Nitrate in Celeries and Carrots

Effect of Pre-Analytical Conditions on Salivary Nitrite Levels

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