Simultaneous determination of phosphorus-32 and calcium-45 activity in biological samples |
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Authors: | H. Bem W. Reimschüssel |
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Affiliation: | (1) Institute of Applied Radiation Chemistry, Technical University Łódź, Wróblewskiego 15, (Poland) |
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Abstract: | Using the technique of liquid scintillation,32P and45Ca activites were determined in biological samples such as bones, blood, milk and egg shells, white and yolk. Samples were mineralized in 70% HClO4 and 30% H2O2 at 70 °C and measured after addition of the “Aquasol” scintillation liquid. A correction for quenching was made by the method of sample channels ratio. High detection efficiencies were obtained, above 80% for45Ca and about 50% for32P in a second measuring channel. Recoveries amounted to 0.95–1.06 for32P and to 0.93–0.98 for45Ca. |
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