Measuring 15N Abundance and Concentration of Aqueous Nitrate, Nitrite, and Ammonium by Membrane Inlet Quadrupole Mass Spectrometry

Measuring 15N Abundance and Concentration of Aqueous Nitrate, Nitrite, and Ammonium by Membrane Inlet Quadrupole Mass Spectrometry

An automated sample preparation unit for inorganic nitrogen (SPIN) coupled to a membrane inlet quadrupole mass spectrometer (MIMS) was developed for automated and sensitive determination of the 15N abundances and concentrations of nitrate, nitrite, and ammonium in aqueous solutions without any sampl...

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Veröffentlicht in:Analytical chemistry (Washington) 2017-06, Vol.89 (11), p.6076-6081
Hauptverfasser: Eschenbach, Wolfram, Lewicka-Szczebak, Dominika, Stange, Claus Florian, Dyckmans, Jens, Well, Reinhard
Format: Artikel
Sprache:eng
Schlagworte:
Abundance
Ammonium
Aqueous solutions
Chemistry
Comparative analysis
Dynamic range
Mass spectrometry
Mass spectroscopy
Nitrates
Nitrites
Nitrogen
Sample preparation
Water analysis
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Zusammenfassung:An automated sample preparation unit for inorganic nitrogen (SPIN) coupled to a membrane inlet quadrupole mass spectrometer (MIMS) was developed for automated and sensitive determination of the 15N abundances and concentrations of nitrate, nitrite, and ammonium in aqueous solutions without any sample preparation. The minimum N concentration for an accurate determination of the 15N abundance is 7 μmol/L for nitrite and nitrate, with a relative standard deviation (RSD) of repeated measurements of
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.7b00724