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Journal Article

Denitrification Studies with $^{13}$N-Labeled Nitrate

Richard Gersberg, Kenneth Krohn, Neal Peek and Charles R. Goldman
Science
New Series, Vol. 192, No. 4245 (Jun. 18, 1976), pp. 1229-1231
Stable URL: http://www.jstor.org/stable/1742600
Page Count: 3
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Denitrification Studies with $^{13}$N-Labeled Nitrate
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Abstract

Nitrate labeled with $^{13}$N ($^{13}$NO$_{3}{}^{-}$) was produced in a cyclotron by the 16O(p, α)$^{13}$N reaction with protons having energies of 14.5 million electron volts. The $^{13}$NO$_{3}{}^{-}$ was used as a tracer for direct quantitative measurements of denitrification rates in soils from flooded rice fields. The $^{13}$N technique provides a new tracer method for the measurement of denitrification rates in natural systems over short time intervals, without changing the concentration of NO$_{3}{}^{-}$ in the system.

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