发明名称 |
Method for standardizing raman spectrometers to obtain stable and transferable calibrations |
摘要 |
A method for providing a standard Raman spectrum from a sample uses 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 of the reference material, a convolution function is determined and applied to produce a deconvolved Raman spectrum of the sample. This deconvolved spectrum is multiplied by a defined standard photometric response function to produce a standard Raman spectrum of the sample. 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, which is applied to a standard Raman spectrum of the unknown sample to produce an accurate and precise quantitative analysis thereof, using any similar Raman spectrometry apparatus.
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申请公布号 |
US5850623(A) |
申请公布日期 |
1998.12.15 |
申请号 |
US19970947689 |
申请日期 |
1997.10.09 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
CARMAN, JR., HOWARD SMITH;ALSMEYER, DANIEL CHARLES;JUAREZ-GARCIA, CARLOS HUMBERTO;GARRETT, AARON WAYNE;WILSON, BRUCE EDWIN;NICELY, VINCENT ALVIN |
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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