<?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>H. J. Rose Jr.</dc:contributor>
  <dc:contributor>R.P. Christian</dc:contributor>
  <dc:creator>K. Beyermann</dc:creator>
  <dc:date>1969</dc:date>
  <dc:description>&lt;div id="aep-abstract-id6" class="abstract author"&gt;&lt;div id="aep-abstract-sec-id7"&gt;&lt;p id="simple-para.0010"&gt;Nanogram amounts of chromium can be extracted as oxinate into chloform. By treatment of the chloroform layer 3&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;M&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;hydrochloric acid, oxinates of other elements and excess of reagent are removed, leaving a chloroform solution of the chromium chelate only. This solution is concentrated and transferred to the top of a small brass rod acting as sample holder. The intensity of the X-ray fluorescence of the Cr Kα line is measured with curved crystal optics. Chromium amounts greater than 5 ng can be detected. The application of the procedure to the analysis of the chromium content of urine is demonstrated.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;div id="aep-abstract-id8" class="abstract author" lang="fr"&gt;&lt;br&gt;&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/S0003-2670(00)89385-X</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>The determination of nanogram amounts of Chromium in urine by x-ray fluorescence spectroscopy</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>