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Kohlícková-Koudelková, M. et al.

Kohlícková-Koudelková, Jedináková-Krízová, Deyl,

Study of perrhenate reduction by capillary electrophoresis.

The influence of perrhenate concentration, the concentration of the reducing agent and pH of the reaction mixture on the yield of perrhenate reduction were studied to find a possibility to decrease the stannous chloride concentration in the reaction mixture without negative changes on the yield of perrhenate reduction. Britton-Robinson buffer solutions were selected as the background electrolytes because of their buffering capacity in a wide pH interval. The highest degree of perrhenate reduction was obtained at pH 2 at perrhenate concentrations ranging from 10(-4) to 10(-3) mol/L. The stability of reduced rhenium against pH change from 2 to 5.5 and against dilution of rhenium in the reaction mixture to the concentration suitable for the application in radiotherapy were studied as well. The results obtained by capillary electrophoresis and by thin-layer chromatography with radiometric detection were compared.[1]

References

Study of perrhenate reduction by capillary electrophoresis. Kohlícková-Koudelková, M., Jedináková-Krízová, V., Deyl, Z. Electrophoresis (2002) [Pubmed]

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