Wavenumber Standards for <scp>R</scp> aman Spectrometry

This chapter describes the use of wavenumber standards for the calibration of Raman instruments. Methods using both The American Society for Testing and Materials (ASTM) Raman shift standard, which was developed to provide accurate wavenumber shifts from readily available commercial materials, and the use of atomic based lines are presented. The Raman shift standard materials have an advantagein that they can then be utilized to calibrate any Raman spectrometer, including spectrometers that use variable excitation sources. They provide an easy way to routinely calibrate an instrument using the actual collection geometry of the apparatus. The use of atomic based lines can provide a more accurate calibration of a spectrometer. Raman shift standard, calibration, wavenumber, atomic lines, ASTM, 4-acetamidophenol.