Published 1985
| Version v1
Report
Open
The analysis of 15N/14N ratios in natural samples, with emphasis on nitrate and ammonium in precipitation
Description
The nitrogen cycle is one of the most important of the earth's elemental cycles. The report describes the procedures used for the analysis of 15N/14N ratios in ammonium and nitrate (and organic nitrogen), and summaries without discussion the data obtained for precipitation (by rain and dust) collected at the Council for Scientific and Industrial Research site. The 15N/14N ratios of nitrogen compounds were determined on N2 gas. This was measured by means of a mass spectrometer. The isotopic analysis of organic nitrogen were conducted in two ways: Kjeldahl digestion to form ammonium, and Dumas combustion directly to N2
Availability note (English)
MF available from INIS under the Report Number.Files
17018914.pdf
Files
(1.1 MB)
| Name | Size | Download all |
|---|---|---|
|
md5:47d7802eb4c4af60f27c8c9a4aae8441
|
1.1 MB | Preview Download |
Additional details
Publishing Information
- ISBN
- 0 7988 3559 1
- Imprint Pagination
- 59 p.
- Report number
- CSIR-RR--624
INIS
- Country of Publication
- South Africa
- Country of Input or Organization
- South Africa
- INIS RN
- 17018914
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- AMMONIUM COMPOUNDS; COMBUSTION; DUSTS; EXPERIMENTAL DATA; ISOTOPE RATIO; KJELDAHL METHOD; MASS SPECTROSCOPY; NITRATES; NITROGEN; NITROGEN 14; NITROGEN 15; QUANTITATIVE CHEMICAL ANALYSIS; RAIN; REAGENTS
- Descriptors DEC
- ATMOSPHERIC PRECIPITATIONS; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; DATA; ELEMENTS; INFORMATION; ISOTOPES; LIGHT NUCLEI; NITROGEN COMPOUNDS; NITROGEN ISOTOPES; NONMETALS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; OXIDATION; OXYGEN COMPOUNDS; SPECTROSCOPY; STABLE ISOTOPES