The radical ions and photoionization of bile pigments.
@article{Land1983TheRI, title={The radical ions and photoionization of bile pigments.}, author={E. Land and R. W. Sloper and T. Truscott}, journal={Radiation research}, year={1983}, volume={96 3}, pages={ 450-61 } }
The semireduced, semioxidized, and OH(.)-adduct radicals of bilirubin (BR) and biliverdin (BV) have been characterized using pulse radiolysis techniques. Laser flash photolysis (265-nm) of these pigments led to monophotonic photoionization with quantum yields of 0.08 for BR and 0.03 for BV. No evidence for triplet formation or for photoisomerization was found after 265-nm laser excitation. However, 347-nm excitation of BR in chloroform led to simultaneous photoisomerization and radical… CONTINUE READING
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