Document Type

Article

Department/Program

Virginia Institute of Marine Science

Publication Date

6-1992

Journal

Limnology and Oceanography

Volume

37

Issue

4

First Page

900

Last Page

907

Abstract

The sensitivity and comparative simplicity of N-15 stable isotopic tracer techniques has been used to quantify rates of nitrification in aquatic systems. However, the most commonly used method for recovery of inorganic oxidized nitrogen compounds from aqueous samples, which is based on liquid-liquid partitioning, is time consuming and contamination prone. We describe a solid-phase rapid chromatographic method for recovery of (NO2-)-N-15 and NO3- produced by nitrification in aqueous samples. Compared to liquid-liquid partitioning, the advantages are significantly reduced processing time and reduced potential for contamination. Typical results are presented for the tidal, freshwater reaches of the James River estuary.

DOI

10.4319/lo.1992.37.4.0900

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