摘要
We report the surface enhanced Raman scattering(SERS)from pyridine in Ag colloids by Fourier transform(FT)infrared Raman spectrometer.The enhancement factors were estimated as 3.4×10^(5) for pyridine in Ag colloids and 5.4 ×10^(5) for the same sample but with the addition of a small amount of KCl.The considerable enhancement in infrared indicates the necessity of further refinement of the currently proposed SERS models.