Sampling systems for isotope-ratio mass spectrometry of atmospheric ammonia
Article first published online: 6 DEC 2005
Copyright © 2005 John Wiley & Sons, Ltd.
Rapid Communications in Mass Spectrometry
Volume 20, Issue 2, pages 81–88, 30 January 2006
How to Cite
Skinner, R., Ineson, P., Jones, H., Sleep, D. and Theobald, M. (2006), Sampling systems for isotope-ratio mass spectrometry of atmospheric ammonia. Rapid Commun. Mass Spectrom., 20: 81–88. doi: 10.1002/rcm.2279
- Issue published online: 6 DEC 2005
- Article first published online: 6 DEC 2005
- Manuscript Revised: 7 NOV 2005
- Manuscript Accepted: 7 NOV 2005
- Manuscript Received: 24 SEP 2005
- Natural Environment Research Council UK (GANE thematic program)
Passive and active ammonia (NH3) sampling devices have been tested for their nitrogen (N) capture potential and δ15N fractionation effects. Several sampling techniques produced significantly different δ15NH3 signals when sampling the same NH3 source released from field site fumigation campaigns. Conventional passive NH3-monitoring systems have shown to provide insufficient N for isotope-ratio mass spectrometry and various modified devices have been developed, based on existing diffusion tube designs, to overcome this problem. The final sampler design was then tested in a wind tunnel to verify that sampling NH3 in different environmental conditions did not significantly fractionate the δ15N signal. Copyright © 2005 John Wiley & Sons, Ltd.