The effects of reaction time, concentration and washing methods were studied.Nano-selenium loaded on chitosan was characterized by UV-vis spectrometry, STM and XRD.

• 采用光谱法、扫描电镜和X射线衍射法对产物进行了表征，研究了反应时间、反应物浓度、洗涤溶剂等对产物颗粒大小、形貌的影响。