Simultaneous determination of nitrite and nitrate in dew, rain, snow and lake water samples by ion-pair high-performance liquid chromatography

Zuo, Yuegang; Wang, Chengjun; Van, Thuan

doi:10.1016/j.talanta.2006.02.034

Cited by 112 publications

(47 citation statements)

References 23 publications

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“…Nitrate was assayed by reversed-phase ion-pair HPLC as described by Zuo et al (2006) with a Luna 5 mm C18(2) 100A 250 3 2.0 mm column from Phenomenex.…”

Section: Nitrate and Nitrite Assaymentioning

confidence: 99%

Nitrite Acts as a Transcriptome Signal at Micromolar Concentrations in Arabidopsis Roots

2007

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Nitrate serves as a potent signal to control gene expression in plants and algae, but little is known about the signaling role of nitrite, the direct product of nitrate reduction. Analysis of several nitrate-induced genes showed that nitrite increases mRNA levels as rapidly as nitrate in nitrogen-starved Arabidopsis (Arabidopsis thaliana) roots. Both nitrite and nitrate induction are apparent at concentrations as low as 100 nM. The response at low nitrite concentrations was not due to contaminating nitrate, which was present at ,1% of the nitrite concentration. High levels of ammonium (20 mM) in the growth medium suppressed induction of several genes by nitrate, but had varied effects on the nitrite response. Transcriptome analysis using 250 or 5 mM nitrate or nitrite showed that over one-half of the nitrate-induced genes, which included genes involved in nitrate and ammonium assimilation, energy production, and carbon and nitrogen metabolism responded equivalently to nitrite; however, the nitrite response was more robust and there were many genes that responded specifically to nitrite. Thus, nitrite can serve as a signal as well as if not better than nitrate.

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“…Nitrate was assayed by reversed-phase ion-pair HPLC as described by Zuo et al (2006) with a Luna 5 mm C18(2) 100A 250 3 2.0 mm column from Phenomenex.…”

Section: Nitrate and Nitrite Assaymentioning

confidence: 99%

Nitrite Acts as a Transcriptome Signal at Micromolar Concentrations in Arabidopsis Roots

2007

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“…Various methods have been used to determine nitrite ions, including spectrophotometric [1], chromatographic [5] and electrochemical methods. The later have more advantages over the other methods in terms of cost and time [6], although they are prone to suffer interference from other readily oxidizable compounds.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Determination of Nitrite on a Rigid Disk Electrode Having Cobalt Phthalocyanine Prepared In Situ

2008

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This work reports an in situ cobalt(II) phthalocyanine (CoPc) synthesis on a SiO 2 /SnO 2 (SiSn) matrix surface obtained by the sol-gel method and its electrocatalytic activity for oxidation of nitrite. A rigid disk electrode with SiSn/CoPc was used to study the electrooxidation of nitrite by the cyclic voltammetric, chronoamperometric techniques and differential pulse voltammetry (DPV). The adsorbed phthalocyanine electrocatalyzed nitrite oxidation at 0.73 V (versus SCE) using the DPV technique. The anodic peak current intensities, plotted from differential pulse voltammograms in 1 mol L À1 KCl for the concentration range 0.002 to 3.85 mmol L À1 of nitrite were linear, with a correlation coefficient of 0.998 and a detection limit of 0.95 mmol L À1 .

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“…Chromatography detection systems include simple UV, fluorimetric, electron capture, electrochemical and mass spectroscopic [2,17,[31][32][33][34][35][36][37]. The popularity of UV detection lies in the simplicity of the approach and the ability to attenuate the detection wavelength.…”

Section: And Mohd Amri MD Yunus Techniques In Advancing the Capabilimentioning

confidence: 99%

“…Many workers have introduced new methods in order to improve the system performance [31,34,37]. A novel method based on HPLC for nitrate and nitrite determination in water has been developed [31].…”

Section: And Mohd Amri MD Yunus Techniques In Advancing the Capabilimentioning

confidence: 99%

“…This method proposes an ion exchange method for ion separation and an optical detection system for ion detection using UV-vis diode-array. Zuo et al [37] developed a simple, fast, accurate and highly sensitive ion-pair HPLC method based on direct spectrophotometric detection for nitrate and nitrite ion determination in lake water. This method proposes spectrophotometric detection due to the ability of the detection to generate high selectivity and sensitivity for nitrate and nitrite measurement.…”

Section: And Mohd Amri MD Yunus Techniques In Advancing the Capabilimentioning

confidence: 99%

See 1 more Smart Citation

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

Azmi

Azman

Ibrahim

et al. 2017

International Journal on Smart Sensing and Intelligent Systems

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Simultaneous determination of nitrite and nitrate in dew, rain, snow and lake water samples by ion-pair high-performance liquid chromatography

Cited by 112 publications

References 23 publications

Nitrite Acts as a Transcriptome Signal at Micromolar Concentrations in Arabidopsis Roots

Nitrite Acts as a Transcriptome Signal at Micromolar Concentrations in Arabidopsis Roots

Electrocatalytic Determination of Nitrite on a Rigid Disk Electrode Having Cobalt Phthalocyanine Prepared In Situ

Techniques in Advancing the Capabilities of Various Nitrate Detection Methods: A Review

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