A more direct observation the intercalation interaction by addition the eu3 + - rutin complex into dna under the optimal conditions ( 0 . 1m acetate buffers . ph = 5 . 69 ) using fluorimetric method was presented . according to the spectral excitation and emission spectrum of dna and guanine 这项研究对芦丁及芦丁稀土配合物这些广谱抗菌、抗病毒药物的生理活性的定性分析和定量分析提供了一个非常直观有力的方法和手段,一具有良好的应用前景。