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Use of Extraction Chromatography, Ion Chromatography and Liquid Scintillation Spectrometry for Rapid Determination of Strontium-89 and Strontium-90 in Food in Cases of Increased Release of radionuclides

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Abstract

For rapid determination of 89Sr and 90Sr in food, isocratic ion chromatography used for Sr isolation and purification is integrated in a complete analytical system comprising sample preparation, incineration, dissolution, phosphate precipitation for alkali/alkaline carth separation, and Sr specific extraction chromatography on crown ether basis for Ca/Sr separation. Strontium-89 and 90Sr are determined by liquid scintillation spectrometry after carbonate precipitation. The components of the mixed spectra obtained are calculated by the computerized spectra subtraction method. Two days plus measuring time are required for single, three for double analysis. The limit of detection for 89Sr and 90Sr is ca. 0.1 Bq·kg−1, related to the fresh produce.

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  1. Institute of Process Engineering, Federal Research Centre for Nutrition, Haid-und-Neu-Strasse 9, 76131, Karlsruhe, Germany

    M. Heilgeist

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  1. M. Heilgeist
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Heilgeist, M. Use of Extraction Chromatography, Ion Chromatography and Liquid Scintillation Spectrometry for Rapid Determination of Strontium-89 and Strontium-90 in Food in Cases of Increased Release of radionuclides. Journal of Radioanalytical and Nuclear Chemistry 245, 249–254 (2000). https://doi.org/10.1023/A:1006777416037

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