Quenching of DNA Phosphorescence

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Science  26 Nov 1965:
Vol. 150, Issue 3700, pp. 1179-1181
DOI: 10.1126/science.150.3700.1179


Paramagnetic cations quench the phosphorescence of DNA at concentrations well below one ion per DNA phosphate. The order of quenching efficiency is copper, nickel, cobalt, and manganese.