Pulse-radiolysis Study of a Biological Matrix

Summary

The technique of pulse radiolysis has been used to study radiolytic processes in egg-white. The yield of e_aq⁻ is 74·5 per cent of that in pure water. The half-life for the decay of e_aq⁻ is 4·5 × 10⁻⁸ sec and that for the decay of OH radicals is < 5 × 10⁻⁹ sec. Cystine anion-radicals are produced with a yield of G(Cy) = 1·44. Part of the cystine anion-radical decays via a reaction with oxygen (k(Cy + O₂) = 1·3 × 10⁸ M⁻¹ sec⁻¹).