HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Duxbury, J. M. Articles by Voghel, S. Search for Related Content PubMed Articles by Duxbury, J. M. Articles by Voghel, S. Agricola Articles by Duxbury, J. M. Articles by Voghel, S.

Storage of Nitrous Oxide on Molecular Sieves¹

ABSTRACT

A procedure was developed for storing the N₂O in 50-mL air samples on activated molecular-sieve type 5A in 60-mL serum bottles. The procedure was equally effective for N₂O concentrations of 1 and 10 µL · L^–1 and storage times up to 6 weeks. Blank values for sieves stored 3 to 5 months after activation ranged from about 0.04 ± 0.002 to 0.05 ± 0.005 µL · L^–1. Allowing freshly activated sieves to cool in air before capping the bottles increased blank values and variability to unacceptable levels. Nitrous oxide fluxes from soil > 10 g N · ha^–1 · d^–1 could be reliably determined when the storage procedure was used in conjunction with a chamber method for N₂O flux measurement.

¹ Cornell University, Dep. of Agronomy Paper no. 1438. This work was supported by NSF Grant PFR 78-11639.

² Associate Professor of Soil Chemistry and former Research Technician, Cornell University, Ithaca, NY 14853.

Received for publication April 20, 1982. Accepted for publication June 24, 1982.