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It is found that in hexamethylene tetramine (HMTA)–HCl buffer of pH 7.00, nucleic acids can quench the resonance light scattering (RLS) of europium (III) (Eu 3+ )–2-thenoyltrifluoroacetne (TTA)–1,10-phenanthroline (Phen) system. Based on this, a sensitive method for the determination of nucleic acids is proposed. The experiments indicate that under the optimum conditions, the quenched RLS...
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