<?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:creator>Craig A. Johnson</dc:creator>
  <dc:date>1996</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;The stable isotopic compositions of nitrogen and carbon in cyanide compounds can be determined by combusting aliquots in sealed tubes to form N&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;gas and CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;gas and analyzing the gases by mass spectrometry. Free cyanide (CN&lt;/span&gt;&lt;sup&gt;-&lt;/sup&gt;&lt;sub&gt;aq&lt;/sub&gt;&lt;span&gt;&amp;nbsp;+ HCN&lt;/span&gt;&lt;sub&gt;aq&lt;/sub&gt;&lt;span&gt;) in simple solutions can also be analyzed by first precipitating the cyanide as copper(II) ferrocyanide and then combusting the precipitate. Reproducibility is ±0.5‰ or better for both δ&lt;/span&gt;&lt;sup&gt;15&lt;/sup&gt;&lt;span&gt;N and δ&lt;/span&gt;&lt;sup&gt;13&lt;/sup&gt;&lt;span&gt;C. If empirical corrections are made on the basis of carbon yields, the reproducibility of δ&lt;/span&gt;&lt;sup&gt;13&lt;/sup&gt;&lt;span&gt;C can be improved to ±0.2‰. The analytical methods described herein are sufficiently accurate and precise to apply stable isotope techniques to problems of cyanide degradation in natural waters and industrial process solutions.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1021/ac950843m</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>ACS Publications</dc:publisher>
  <dc:title>Determination of 15N/14N and 13C/12C in solid and aqueous cyanides</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>