Photometric Standards for Raman Spectroscopy

Correction of Raman spectra for instrument response to produce a spectrum with reliable relative peak intensities is not commonly performed, in part because of experimental difficulty and lack of suitable standards. Procedures are described on the basis of white light sources and on luminescent samples with known output intensity profiles. In the latter case, the procedure is fast and automatic, with an intensity standard merely taking the place of an ordinary sample. In addition to simplicity, the method is more accurate than a white light source because the illumination geometry of the intensity standard is identical to that of the sample. Standards are currently available from National Institute of Standards and Technology (NIST) for several wavelengths, including 785, 532, and 514.5 nm. Spectra of several compounds are provided for determining the accuracy of intensity calibrations, and procedures for deducing the Raman cross section for target materials are described. Keywords: Raman calibration; instrument response function; Raman intensity correction

[1]  S. Asher,et al.  Self-Absorption in Resonance Raman and Rayleigh Scattering: A Numerical Solution , 1988 .

[2]  R. McCreery,et al.  Surface-enhanced Raman spectroscopy of carbon electrode surfaces following silver electrodeposition , 1991 .

[3]  P. Hendra,et al.  A standardised intensity scale for Fourier transform Raman spectra of liquids , 1991 .

[4]  Christopher J. Frank,et al.  Intensity Calibration and Sensitivity Comparisons for CCD/Raman Spectrometers , 1993 .

[5]  Sanford A. Asher,et al.  UV resonance Raman excitation profile through the 1B2u state of benzene , 1985 .

[6]  H. Hamaguchi.  Calibrating Multichannel Raman Spectrometers , 1988 .

[7]  Richard L. McCreery,et al.  Raman Spectroscopy for Chemical Analysis , 2000 .

[8]  E. Lippincott,et al.  The effect of the internal field on Raman scattering cross sections , 1973 .

[9]  J. Rabolt,et al.  Fourier transform Raman spectroscopy : from concept to experiment , 1994 .

[10]  R. McCreery,et al.  Raman Spectroscopy for Chemical Analysis: McCreery/Raman Spectroscopy , 2005 .

[11]  Richard A. Mathies,et al.  Raman cross section measurements in the visible and ultraviolet using an integrating cavity: Application to benzene, cyclohexane, and cacodylate , 1986 .

[12]  R. McCreery,et al.  Calibration of Raman Spectrometer Instrument Response Function with Luminescence Standards: An Update , 1998 .

[13]  K. Schomacker,et al.  Measurements of the absolute Raman cross sections of benzene , 1986 .

[14]  L. Duenkel,et al.  Topics in Current Physics , 1991 .

[15]  Anne B. Myers,et al.  Absolute Raman cross sections for cyclohexane, acetonitrile, and water in the far-ultraviolet region , 1990 .

[16]  Jeanette G. Grasselli,et al.  Analytical Raman spectroscopy , 1991 .

[17]  R. McCreery,et al.  Simplified Calibration of Instrument Response Function for Raman Spectrometers Based on Luminescent Intensity Standards , 1997 .

[18]  Michael J. Pelletier,et al.  Analytical Applications of Raman Spectroscopy , 1999 .

[19]  M. C. Hutley,et al.  On the Dependence of Vibrational Raman Intensity on the Wavelength of Incident Light , 1971 .

[20]  S. Brodersen,et al.  Raman spectroscopy of gases and liquids , 1979 .