Rapid in situ identification of arsenic species using a portable Fe3O4@Ag SERS sensor
Jingjing Du1, Jinli Cui, Chuanyong Jing
1State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. cyjing@rcees.ac.cn.
Abstract:
Rapid and sensitive SERS identification and quantification of arsenic species in multiple matrices have been realized using a Fe3O4@Ag magnetic substrate. The molecular structure of arsenic on Fe3O4@Ag characterized using EXAFS spectroscopy and DFT confirms the existence of a chemical effect on SERS enhancement.


