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Separation and determination of micromolar ammonia, nitrite, and nitrate from a single small sample

  • Original Papers
  • General And Inorganic Chemistry
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Summary

Micromolar analyses of the nitrogen species NH3, NO −2 , and NO −3 in soil and other samples are usually accomplished by extracting several samples and testing each for a different species. This procedure is not viable when the quantity of the initial sample is limited. An improved method of separating and analysing for ammonia NH3(aq), nitrite NO −2 (aq), and nitrate NO −3 (aq) from a single small sample with concentrations of 0–50 μmol/l is reported. No interferences or carryovers among the three nitrogen containing species were found. Uncertainties were ±2–5 μmol/l and accuracies with respect to standards were ±3 μmol/l.

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Authors and Affiliations

  1. Department of Chemistry, University of Toledo, 43606, Toledo, OH, USA

    G. T. Richardson, J. A. Davies & J. G. Edwards

Authors
  1. G. T. Richardson
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  2. J. A. Davies
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  3. J. G. Edwards
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Richardson, G.T., Davies, J.A. & Edwards, J.G. Separation and determination of micromolar ammonia, nitrite, and nitrate from a single small sample. Fresenius J Anal Chem 343, 473–474 (1992). https://doi.org/10.1007/BF00322152

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  • DOI: https://doi.org/10.1007/BF00322152

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