Diffusion technique for preparing salt solutions, Kjeldahl digests, and persulfate digests for nitrogen-15 analysis

Soil Science Society of America Journal

Volumn 60, Issue 6, 1996, Pages 1846-1855

  Stark, John M ^a   Hart, Stephen C ^b  

^a UTAH STATE UNIVERSITY   (United States)

^b NORTHERN ARIZONA UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DIFFUSION METHOD; NITROGEN-15 ANALYSIS; SALT SOLUTION; SOIL EXTRACTION;

EID: 0030299097     PISSN: 03615995     EISSN: None     Source Type: Journal    
DOI: 10.2136/sssaj1996.03615995006000060033x     Document Type: Article

References (19)

1. Brooks, P.D., J.M. Stark, B.B. Mclnteer, and T. Preston. 1989. A diffusion method to prepare soil extracts for automated nitrogen-15 analysis. Soil Sci. Soc. Am. J. 53:1707-1711.
2. Burke, I., A.R. Moser, 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.
3. Cabrera, M.L, and M.H. Beare. 1993. Alkaline persulfate oxidation for determining total nitrogen in microbial biomass extracts. Soil Sci. Soc. Am. J. 57:1007-1012.
4. Conway, E.G. 1957. Microdiffusion analysis and volumetric error. Crosby Lockwood and Son, London.
5. Davidson, E.A., R.W. Eckert, S.C. Hart, and M.K. Firestone. 1989. Direct extraction of microbial biomass nitrogen from forest and grassland soils of California. Soil Biol. Biochem. 21:773-778.
6. 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.
7. 15N and total N in plant material and soil. Plant Soil 133:83-92.
8. Kelley, K.R., D.C. Ditsch, and M.M. Alley. 1991. Diffusion and automated nitrogen-15 analysis of low-mass ammonium samples. Soil Sci. Soc. Am. J. 55:1016-1020.
9. Liu, Y.P., and R.L. Mulvaney. 1992. Use of diffusion for automated nitrogen-15 analysis of soil extracts. Commun. Soil Sci. Plant Anal. 23:613-629.
10. Lory, J.A., and M.P. Russelle. 1994. Evaluation of a diffusion method for preparing low-nitrogen samples for nitrogen-15 analysis. Soil Sci. Soc Am. J. 58:1400-1404.
11. 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.
12. O'Deen, W.A., and L.K. Porter. 1979. Digestion tube diffusion and collection of ammonia for nitrogen-15 and total nitrogen determination. Anal. Chem. 51:586-589.
13. Qasim, M., and T.H. Flowers. 1989. Errors in the measurement of extractable soil inorganic nitrogen caused by impurities in filter papers. Commun. Soil Sci. Plant Anal. 20:747-757.
14. Saghir, N.S., F.P. Mungwari, R.L. Mulvaney, and F. Azam. 1993. Determination of nitrogen by microdiffusion in mason jars: II. Inorganic nitrogen-15 in soil extracts. Commun. Soil Sci. Plant Anal. 24:2747-2763.
15. 15N determination. Anal. Chim. Acta 252:201-203.
16. Sparrow, S.D., and D.T. Masiak. 1987. Errors in analyses for ammonium and nitrate caused by contamination from filter papers. Soil Sci. Soc. Am. J. 51:107-110.
17. Steel, R.G., and J.H. Torrie. 1980. Principles and procedures of statistics. McGraw-Hill, New York.
18. Stein, S.N., L. Li, R.L. Mulvaney, and F.W. Simmons, 1993. Determination of nitrogen by microdiffusion in mason jars: III. Nitrogen and nitrogen-15 in Kjeldahl digests. Commun. Soil Sci. Plant Anal. 24:2765-2776.
19. Wyland, L.J., L.E. Jackson, and P.D. Brooks. 1994. Eliminating nitrate interference during Kjeldahl digestion of soil extracts for microbial biomass determination. Soil Sci. Soc. Am. J. 58:357-360.