Journal
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
Volume 51, Issue 11, Pages 1517-1528Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.dsr.2004.06.009
Keywords
gas solubility; saturation; neon; nitrogen; argon; inert gases
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Large discrepancies in published neon and nitrogen solubility data limit the interpretation of oceanic measurements of these gases. We present new solubility measurements for neon, nitrogen and argon in distilled water and seawater, over a temperature range of 1-30 degreesC. Water was equilibrated with air at measured temperatures, salinities and pressures. Dissolved Ne concentrations were then determined by isotope dilution using a quadrupole mass spectrometer. Ratios of O-2/N-2/Ar were measured on a stable isotope ratio mass spectrometer, from which absolute N-2 and Ar concentrations were calculated using published O-2 solubilities. We propose new equations, fitted to the data, for the equilibrium concentrations of Ne, N2 and Ar with estimated errors of 0.30%, 0.14% and 0.13%, respectively. The Ar results matched those of most previous researchers within 0.4%. However, the Ne and N2 results were greater by 1% or more than those of Weiss. (C) 2004 Elsevier Ltd. All rights reserved.
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