Preparation of a PTFE Envelope for Quantitatively Capturing Gaseous NH3
2:41
Capturing Diffused NH4+ in 2M H2SO4 absorbed to the GF/D Filter in the PTFE Envelope and the Persulfate Oxidation
4:53
Determining the NO3" Converted from NH4+ by the Denitrifier Method Using Quadrupole GC/MS
6:38
Results: Determination of DNRA Rate Based on 14NH4+/15NH4+ Analyses
7:36
Conclusion
Transcript
Coastal and the marine ecosystems are important as reservoirs, for removing nitrate from terrestrial ecosystems. Nitrate in aquatic environment can be consumed by several processes simultaneously. Such as denitrification, anammox and DNRA.
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A series of methods to determine the potential DNRA rate based on 14NH4+/15NH4+ analyses is provided in detail. NH4+ is converted into N2O via several steps and analyzed using quadrupole gas chromatography–mass spectrometry.