Research Progress of Surface Enhanced Raman Spectroscopy in Detection of Azo Dyes
Harbin Product Quality Supervision and Inspection Institute, Harbin 150036, China
Abstract：Status of azo dyes detection was described briefly. The methods of surface enhanced Raman spectroscopy in the detection of azo dyes were reviewed. The application of three kinds of enhanced substrates such as metal sol, metal electrode and metal film in the detection of azo dyes was introduced. Trend of its development of in the detection of azo dyes was also prospected. Surface enhanced Raman spectroscopy is a new spectral analysis technique. It has the advantages of simple operation, rapid and high sensitivity, and it opens a new way for the detection of azo dyes.
Keywords：azo dyes; surface enhanced Raman spectroscopy; enhanced substrate