【Abstract】 The effect of sucrose on nanometer Se⁰ in liquid phase was reported.Transmission electron microscope（TEM）,laser light scattering image and Resonance Rayleigh Scattering（RRS） were used to study the configuration and stability of nanometer Se⁰ particles.The results show that sucrose solution modulated the assemble of nanometer Se⁰ particles and stabilized the Se⁰ particles in liquid phase.From the concentration of 1.07 to 42.8 μmol/L,the diameter of Se⁰ particles were 47—600 nm.However,in the presence of 1.0% sucrose solution,the major distribution range of Se⁰ diameter was 20—80 nm.Furthermore,the nanometer Se⁰ sol-gel could be preserved stably in sucrose solution at least for 2 months at 2—10 ℃.更多还原