摘要 |
A method for providing an accurate and precise quantitative analysis of the chemical composition and/or physical properties of an unknown sample uses the standard Raman spectra of a plurality of known samples to construct a normalized calibration (Step C1), which is applied to a standard Raman spectrum of the unknown sample obtained from a particular Raman spectrometry apparatus or any similar Raman spectrometry apparatus, which is used to simultaneously irradiate a reference material and at least one sample, thereby obtaining their respective convolved Raman spectra. Using a defined standard energy dispersion characteristic and a standard Raman spectrum (Step P2) of the reference material, a convolved function is determined (Step R6) and applied to produce a deconvolved Raman spectrum of the sample (Step R7). This deconvolved spectrum is multiplied by a defined standard photometric response function to produce a standard Raman spectrum of the sample (Step R8), thereby providing an accurate and precise quantitative analysis.
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申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
CARMAN, HOWARD, S., JR.;ALSMEYER, DANIEL, C.;HUAREZ-GARCIA, CARLOS, HUMBERTO;GARRETT, AARON, W.;WILSON, BRUCE, E.;NICELY, VINCENT, A. |