Picture map of Europe with pins indicating European capital cities

Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

Explore research outputs by the European Policies Research Centre...

Direct equilibration of soil water for delta O-18 analysis and its application to tracer studies

McConville, C. and Kalin, R.M. and Flood, D. (1999) Direct equilibration of soil water for delta O-18 analysis and its application to tracer studies. Rapid Communications in Mass Spectrometry, 13 (13). pp. 1339-1345.

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

Current methods for stable oxygen isotopic (delta(18)O) analysis of soil water rely on separation of water from the soil matrix before analysis. These separation procedures are not only time consuming and require relatively large samples of soil, but also have been shown to introduce a large potential source of error. Current research at Queen's University Belfast is focused on using direct equilibration of CO2 with the pore water to eliminate this extraction step using the automated Multiprep system and a Micromass Prism III isotope ratio mass spectrometer (IRMS). The findings of this research indicate the method is less time consuming, more reliable, and reproducible to within accepted limits (+/-0.1%parts per thousand delta(18)O). In this study the direct equilibration method is used to analyse delta(18)O tracer profiles in the unsaturated zone of field soils, concurrently with chloride tracer profiles, which can be used to assess infiltration rates and mechanisms through the unsaturated zone. Copyright (C) 1999 John Wiley & Sons, Ltd.