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@ARTICLE{Liu:153893,
      author       = {Liu, Shurong and Vereecken, Harry and Brüggemann, Nicolas},
      title        = {{A} highly sensitive method for the determination of
                      hydroxylamine in soils},
      journal      = {Geoderma},
      volume       = {232-234},
      issn         = {0016-7061},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2014-03364},
      pages        = {117 - 122},
      year         = {2014},
      abstract     = {Hydroxylamine (HA) is a crucial intermediate in the first
                      step of nitrification, i.e., the oxidation of ammonium to
                      nitrite. Due to its reactivity, HA may play a key role in
                      soil N2O emission. To determine soil HA concentrations and
                      to explore the correlation between soil HA concentrations
                      and N2O emission rates, we developed a novel, extremely
                      sensitive method based on fast extraction of HA from the
                      soil at pH 1.7, oxidation of HA to N2O with Fe3 + and
                      analysis of the N2O with gas chromatography (GC). The new
                      method was tested on soil samples from a temperate Norway
                      spruce forest, comparing soil HA concentrations with N2O
                      emission rates determined with microincubations of the soil
                      samples in GC vials. Our results demonstrate that the new GC
                      method is extremely sensitive, being able to detect soil HA
                      contents as low as 0.3 μg N kg− 1 dry soil. HA content in
                      the forest soil samples ranged between 0.3 and 34.8 μg N
                      kg− 1 dry soil. Moreover, N2O emission rates were
                      significantly correlated with soil HA content (r2 = 0.80),
                      suggesting a key role of HA in N2O formation under aerobic
                      conditions.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246) / 255 - Terrestrial Systems:
                      From Observation to Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000340315700013},
      doi          = {10.1016/j.geoderma.2014.05.006},
      url          = {https://juser.fz-juelich.de/record/153893},
}