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Science 18 June 1976:
Vol. 192. no. 4245, pp. 1229 - 1231
DOI: 10.1126/science.192.4245.1229
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Articles

Denitrification Studies with 13N-Labeled Nitrate

RICHARD GERSBERG 1, KENNETH KROHN 2, NEAL PEEK 3, and CHARLES R. GOLDMAN 4

1 Division of Environmental Studies, University of California, Davis 95616
2 Department of Radiology, School of Medicine, University of California, Davis 95616
3 Department of Physics, University of California, Davis 95616
4 Division of Environmental Studies University of California, Davis 95616

Nitrate labeled with 13N (13NO3–) was produced in a cyclotron by the 16O(p, agr)13N reaction with protons having energies of 14.5 million electron volts. The 13NO3– was used as a tracer for direct quantitative measurements of denitrification rates in soils from flooded rice fields. The 13N technique provides a new tracer method for the measurement of denitrification rates in natural systems over short time intervals, without changing the concentration of NO3–in the system.

Submitted on December 15, 1975
Revised on March 8, 1976


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Distribution of nitrogen-13 from labeled nitrate (13No3-) in humans and rats.
J. Witter, S. Gatley, and E Balish (1979)
Science 204, 411-413
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