Improved diffusion technique for 15N:14N analysis of ammonium and nitrate from aqueous samples by stable isotope spectrometry

Communications in Soil Science and Plant Analysis

Volumn 29, Issue 3-4, 1998, Pages 361-368

  Goerges, Tjark ^a   Dittert, Klaus ^a  

^a UNIVERSITY OF KIEL   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

AMMONIA; MASS SPECTROMETRY; NITRATE; SOIL SOLUTION;

EID: 0031971578     PISSN: 00103624     EISSN: None     Source Type: Journal    
DOI: 10.1080/00103629809369950     Document Type: Article

References (7)

1. Bremner, J.M. and D.R. Keeney. 1966. Determination and isotope-ratio analysis of different forms of nitrogen in soils: III. Exchangeable ammonium, nitrate, and nitrite by extraction-distillation methods. Soil Sci. Soc. Am. Proc. 30:577-582.
2. Brooks, P.D., J.M. Stark, B.B. McInteer, and T. Preston. 1989. Diffusion method to prepare extracts for automated nitrogen-15 analysis. Soil Sci. Soc. Am. J. 53:1707- 1711.
3. Burke, I.C., A.R. Mosier, L.K. Porter, and L.A. O'Deen. 1990. Diffusion of soil extracts for nitrogen and nitrogen-15 analyses by automated combustion/mass spectrometry. Soil Sci. Soc. Am. J. 54:1190-1192.
4. Herman, D.J., P.D. Brooks, M. Ashraf, F. Azam, and R.L. Mulvaney. 1995. Evaluation of methods for nitrogen-15 analysis of inorganic nitrogen in soil extracts. II. Diffusion methods. Commun. Soil Sci. Plant Anal. 26:1675-1685.
5. MacKown, C.T., P.D. Brooks, and M.S. Smith. 1987. Diffusion of nitrogen-15 Kjeldahl digests for isotope analysis. Soil Sci. Soc. Am. J. 51:87-90.
6. 15N determination. Anal. Chim. Acta. 252:201-203.
7. Stark, J.M. and S.C. Hart. 1996. Diffusion technique for preparing salt solutions, Kjeldahl digests, and persulfate digests for nitrogen-15 analysis. Soil Sci. Soc. Am. J. 60:1846- 1855.