Published July 2000
| Version v1
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Modified micro-diffusion method for 15N-enriched soil solutions
Creators
- 1. Soil Science Unit, FAO/IAEA Agriculture and Biotechnology Laboratories, Seibersdorf (Austria)
Description
The preparation of solutions for determination of 15N/14N isotope ratios is described, with special reference to dilute samples. A micro-diffusion method has been simplified to be more suitable for rapid isotope-ratio determination in soil solutions collected in tensionics. Ammonia expelled during micro-diffusion is captured on acidified filter discs fixed to the caps of gas-tight vials. The discs are transferred to tin capsules for shipment to the Soil Science Unit for 15N-enrichment determination. (author)
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31039205.pdf
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Additional details
Publishing Information
- Imprint Title
- Optimizing nitrogen fertilizer application to irrigated wheat. Results of a co-ordinated research project. 1994-1998
- Imprint Pagination
- 251 p.
- Journal Page Range
- p. 191-200
- ISSN
- 1011-4289
- Report number
- IAEA-TECDOC--1164
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 31039205
- Subject category
- S60: APPLIED LIFE SCIENCES;
- Descriptors DEI
- AMMONIA; DIFFUSION; FERTILIZERS; IRRIGATION; ISOTOPE RATIO; NITROGEN 14; NITROGEN 15; SOILS; TRACER TECHNIQUES; UPTAKE
- Descriptors DEC
- HYDRIDES; HYDROGEN COMPOUNDS; ISOTOPE APPLICATIONS; ISOTOPES; LIGHT NUCLEI; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; NITROGEN ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; STABLE ISOTOPES
Optional Information
- Notes
- 10 refs, 2 tabs