Kinetic study of the 1,3,5-triphenyl-Δ2-pyrazoline/technetium(VII) system: Determination of Technetium |
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| Authors: | F Grases JG March F Mata A Pen˜afiel |
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| Institution: | Department of Chemistry, Faculty of Sciences, University of Balearic Islands, 07071- Palma de Mallorca Spain;Nuclear Medicine Section, Hospital “Virgen de Lluc”, Palma de Mallorca Spain |
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| Abstract: | The interaction of technetium with 1,3,5-triphenyl-Δ2-pyrazoline (TPP) is examined and kinetic methods for the determination of technetium (0.01–1.2 mg l?1) are developed; absorbances are measured at 678 nm. The optimal hydrochloric acid concentration for the reaction is 8.3 M, with a TPP concentration of 6.6 × 10?5 M in 15 % (v/v) ethanol. Interferences by Cu(II), V(V) and Fe(III) are discussed. The method is applied to two synthetic nuclear fuels and to vegetation spiked with technetium. |
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