Relative Intensity Correction of Raman Spectrometers: NIST SRMs 2241 through 2243 for 785 nm, 532 nm, and 488 nm/514.5 nm Excitation:

摘要: Standard Reference Materials SRMs 2241 through 2243 are certified spectroscopic standards intended for the correction of relative intensity Raman spectra obtained with instruments employing laser excitation wavelengths 785 nm, 532 or 488 nm/514.5 nm. These each consist an optical glass that emits a broadband luminescence spectrum when illuminated laser. The shape is described by polynomial expression relates spectral to shift units in wavenumber (cm(-1)). This polynomial, together measurement standard, can be used determine intensity-response correction, which unique system. resulting instrument may then obtain corrected number of, but not all, instrument-dependent artifacts. Peak area ratios intensity-corrected cyclohexane presented as example methodology validate calibration process and illustrate variations occur this measurement.