Affiliation:
1. China University of Petroleum(East China
Abstract
Surface-enhanced Raman spectroscopy (SERS), having the advantages of high detection sensibility and fast analysis speed, meets the requirements of the detection of sulfur content in simulated gasoline. The optimal preparation conditions of nano-silver substrate which played an important role in enhancing Raman signals was mainly studyed in this paper. Potentiostatic oxidation-reduction method was selected to prepare roughened silver electrode as the nano-substrate. The influences of electrolyte, potential and reduction time were investigated. It shows that bromide ion in electrolytes and nearly balance potential could lead to much better result that relative area intensification factor is equal to 81746.
Publisher
Trans Tech Publications, Ltd.