<?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>Bruce B. Hanshaw</dc:contributor>
  <dc:creator>H.R. Feltz</dc:creator>
  <dc:date>1963</dc:date>
  <dc:description>For most natural water, a large sample is required to provide the 3 grams of carbon needed for a carbon-14 determination. A field procedure for isolating total dissolved-carbonate species is described. Carbon dioxide gas is evolved by adding sulfuric acid to the water sample; the gas is then collected in a sodium hydroxide trap by recycling in a closed system. The trap is then transported to the dating laboratory where the carbon-14 is counted.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/cir480</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>United States Geological Survey,</dc:publisher>
  <dc:title>Preparation of water samples for carbon-14 dating</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>