Abstract
THE fluorescence of the cerous ion in aqueous solution has been the subject of a number of studies1–3. The emission maximum occurs at about 355 nm, this being excited by absorption at about 265 and 305 nm. The fluorescence is little affected by temperature in the range 10°–40° C, or by strong acids. Nitric acid, however, oxidizes the cerium to the non-fluorescent ceric state. The fluorescence is also affected by the presence of the ceric ion1 and of some other cations2.
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References
Armstrong, W. A., Grant, D. W., and Humphreys, W. G., Anal. Chem., 35, 1300 (1963).
Poluektov, N. S., Kirillov, A. I., Tischenko, M. A., and Zelyukova, Yu V., Zh. Anal. Khim., 22, 707 (1967).
Kirkbright, G. F., West, T. S., and Woodward, C., Anal. Chim. Acta, 36, 298 (1966).
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BODEN, H. Quenching of the Fluorescence of the Cerous Ion in Aqueous Solution by some Organic Ligands. Nature 222, 161–162 (1969). https://doi.org/10.1038/222161b0
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DOI: https://doi.org/10.1038/222161b0
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