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Radiochemistry of Arsenic, by Harold C. Beard (1960) / Chapter Skim
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Counting techniques pertinent to arsenic isotopes
Pages 23-23

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From page 23...
... Recent work by Gorsuch on oxidation of biological materials by combinations of nitric and perchloric acids; nitric, perchloric and sulfuric acids; and nitric and sulfuric acids all in the presence of sodium chloride has shown that chloride ion will not cause a loss of arsenic if sufficient nitric acid is initially present. All of the chloride is removed long before there is any chance of the arsenic being reduced to the trivalent form.
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Key Terms

  • nitric acid
  • concentrated nitric
  • sulfuric acids
  • sufficient chlorine
  • sodium chloride

  • neutron deficient
  • hydrochloric acid
  • deficient arsenic
  • below attempt
  • counting techniques

  • logical solvent
  • arsenic samples
  • chloride ion
  • easily oxidized
  • hydrogen peroxide

  • positron emitters
  • paragraphs below
  • biological materials
  • easily separated
  • sample provided

  • aqua regia
  • prominent annihilation
  • trivalent state
  • isotopes emit
  • recent work

  • unless care
  • concentrated perchloric
  • precipitated unless
  • relevant comments
  • annihilation peak


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