oa Agrochemophysica - Radiometric assay of calcium-45 in plant material by liquid scintillation counting

Volume 4, Issue 1
  • ISSN : 0302-7112



A rapid method is proposed for the routine radiometric assay of calcium-45 in plant material. The calcium-45 is precipitated as the sulphate in ethyl alcohol medium directly in the counting vials. The precipitate which has gelling properties in an alcohol/toluene scintillator mixture, is counted in a liquid scintillation counter. A counting efficiency of 90% is obtained.

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