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  • 1 Bureau of Geology Mineral Resources Laboratory of No. 2 Regional Geological Surveying Party Henan Xuchang, Henan (China)
  • | 2 Bureau of Geology and Mineral Resources Center of Rock and Mineral Analysis Jiangxi Nanchang, Jiangxi (China)
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The sorption of tantalum by PU foam is quantitative in 1.2M hydrochloric acid containing 0.135M ammonium fluoride, and can be used for preconcentration of traces in rocks, soils and sediments.