<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>J. D. Wildman</dc:contributor>
  <dc:contributor>J. Chen</dc:contributor>
  <dc:creator>T.B. Coplen</dc:creator>
  <dc:date>1991</dc:date>
  <dc:description>&lt;p&gt;Improved precision in the H&lt;sub&gt;2&lt;/sub&gt;-H&lt;sub&gt;2&lt;/sub&gt;O equilibration method for δD analysis has been achieved in an automated system. Reduction in 1-&lt;span&gt;σ&lt;/span&gt; standard deviation of a single mass-spectrometer analysis to 1.3&lt;span&gt;‰&lt;/span&gt; is achieved by (1) bonding catalyst to glass rods and assigning use to specific equilibration chambers to monitor performance of catalyst, (2) improving the apparatus design, and (3) reducing the H&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt; contribution of the mass-spectrometer ion source. For replicate analysis of a water sample, the standard deviation improved to 0.8&lt;span&gt;‰&lt;/span&gt;. H&lt;sub&gt;2&lt;/sub&gt;S-bearing samples and samples as small as 0.1 mL can be analyzed routinely with this method.&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1021/ac00009a014</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>ACS Publications</dc:publisher>
  <dc:title>Improvements in the gaseous hydrogen-water equilibration technique for hydrogen isotope ratio analysis</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>