Quenching and enhancement of fluorescence from rhodamine(RhB) and Fluorescein sodium(FS) molecules on the two colloids of silver nano-particles were recorded respectively and compared with each other.

• 当罗丹明B(RhB)分子分别吸附在这两种纳米银上时 ,对负电性纳米银 ,观察到荧光猝灭、荧光峰红移现象 ,且在分子的浓度适当时 ,加入KBr可获得较强的表面增强拉曼光谱 ;