Surface and resonance-enhanced Raman detection method and apparatus

摘要

A method and system for detecting a chemical using SERS includes shifting the absorption wavelength signature of the precursor chemical toward a higher wavelength. SERS is performed on the wavelength shifted chemical in order to determine the concentration of the precursor chemical.

主权项

1. A method of detecting a chemical using SERS, said method comprising:
shifting the absorption wavelength signature of the precursor chemical toward a higher wavelength and performing SERS on the wavelength shifted chemical in order to determine concentration of the precursor chemical wherein said shifting the absorption wavelength is carried out by radiation chemical transformation wherein said transformation comprises inducing reduction or oxidation of the precursor chemical by applying ionizing radiation or ultraviolet light to the precursor chemical.