发明名称 |
METHOD FOR STANDARDIZING RAMAN SPECTROMETERS TO OBTAIN STABLE AND TRANSFERABLE CALIBRATIONS |
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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申请公布号 |
CA2286093(A1) |
申请公布日期 |
1998.09.24 |
申请号 |
CA19982286093 |
申请日期 |
1998.03.05 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
JUAREZ-GARCIA, CARLOS HUMBERTO;GARRETT, AARON W.;CARMAN, HOWARD S., JR.;WILSON, BRUCE E.;NICELY, VINCENT A.;ALSMEYER, DANIEL C. |
分类号 |
G01J3/28;G01J3/44;G01N21/27;G01N21/65;(IPC1-7):G01J3/44;G01N33/00 |
主分类号 |
G01J3/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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