CA2190627A1 - Raman spectrometry apparatus and method - Google Patents

Raman spectrometry apparatus and method

Info

Publication number
CA2190627A1
CA2190627A1 CA2190627A CA2190627A CA2190627A1 CA 2190627 A1 CA2190627 A1 CA 2190627A1 CA 2190627 A CA2190627 A CA 2190627A CA 2190627 A CA2190627 A CA 2190627A CA 2190627 A1 CA2190627 A1 CA 2190627A1
Authority
CA
Canada
Prior art keywords
sample
convolved
spectrum
reference material
raman spectrum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2190627A
Other languages
French (fr)
Other versions
CA2190627C (en
Inventor
Daniel Charles Alsmeyer
Brinda Ashok Gala
Vincent Alvin Nicely
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Chemical Co
Original Assignee
Daniel Charles Alsmeyer
Brinda Ashok Gala
Vincent Alvin Nicely
Eastman Chemical Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daniel Charles Alsmeyer, Brinda Ashok Gala, Vincent Alvin Nicely, Eastman Chemical Company filed Critical Daniel Charles Alsmeyer
Publication of CA2190627A1 publication Critical patent/CA2190627A1/en
Application granted granted Critical
Publication of CA2190627C publication Critical patent/CA2190627C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/44—Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2400/00—Characteristics for processes of polymerization
    • C08F2400/02—Control or adjustment of polymerization parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J2003/2866—Markers; Calibrating of scan

Abstract

A Raman spectrometry apparatus that is capable of measuring and compensating for variabilities in the apparatus comprises a source of substantially monochromatic radiation, means for simultaneously interfacing the radiation with a sample and a reference material, means for simultaneously acquiring at more than one wavelength a convolved Raman spectrum of the sample and the convolved spectrum of the reference material, and means for determining the convolution function of the convolved spectra and applying the convolution function to adjust the convolved Raman spectrum of the sample to produce thereby the standard Raman spectrum of the sample. A method for obtaining the standard Raman spectrum of a sample comprises: (a) simultaneous irradiating the sample and a reference material with a substantially monochromatic radiation source; (b) simultaneously acquiring at more than one wavelength a convolved Raman spectrum of the sample and a convolved spectrum of the reference material; (c) choosing the standard spectrum of the reference material; (d) from the convolved Raman spectrum of the sample and the convolved spectrum of the reference material and the standard spectrum of the reference material, determining the convolution function of the convolved spectra; and (e) applying the convolution function to adjust the convolved Raman spectrum of the sample to produce thereby the standard Raman spectrum of the sample.
CA002190627A 1994-05-27 1995-05-15 Raman spectrometry apparatus and method Expired - Fee Related CA2190627C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/250,396 US5455673A (en) 1994-05-27 1994-05-27 Apparatus and method for measuring and applying a convolution function to produce a standard Raman spectrum
US08/250,396 1994-05-27
PCT/US1995/005991 WO1995033189A1 (en) 1994-05-27 1995-05-15 Raman spectrometry apparatus and method

Publications (2)

Publication Number Publication Date
CA2190627A1 true CA2190627A1 (en) 1995-12-07
CA2190627C CA2190627C (en) 2000-03-07

Family

ID=22947564

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002190627A Expired - Fee Related CA2190627C (en) 1994-05-27 1995-05-15 Raman spectrometry apparatus and method

Country Status (20)

Country Link
US (1) US5455673A (en)
EP (1) EP0760938B1 (en)
JP (1) JPH10501333A (en)
KR (1) KR970703524A (en)
CN (1) CN1079533C (en)
AT (1) ATE186981T1 (en)
AU (1) AU682118B2 (en)
BR (1) BR9507781A (en)
CA (1) CA2190627C (en)
CO (1) CO4340571A1 (en)
CZ (1) CZ345196A3 (en)
DE (1) DE69513517T2 (en)
ES (1) ES2139212T3 (en)
HU (1) HUT76508A (en)
MY (1) MY111464A (en)
PL (1) PL317399A1 (en)
SK (1) SK136396A3 (en)
TW (1) TW300280B (en)
WO (1) WO1995033189A1 (en)
ZA (1) ZA954309B (en)

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Also Published As

Publication number Publication date
DE69513517D1 (en) 1999-12-30
AU2588295A (en) 1995-12-21
CO4340571A1 (en) 1996-07-30
HU9603124D0 (en) 1997-01-28
KR970703524A (en) 1997-07-03
EP0760938B1 (en) 1999-11-24
PL317399A1 (en) 1997-04-14
US5455673A (en) 1995-10-03
ATE186981T1 (en) 1999-12-15
CN1079533C (en) 2002-02-20
TW300280B (en) 1997-03-11
AU682118B2 (en) 1997-09-18
JPH10501333A (en) 1998-02-03
CZ345196A3 (en) 1998-02-18
SK136396A3 (en) 1997-08-06
HUT76508A (en) 1997-09-29
ZA954309B (en) 1996-08-14
CN1149334A (en) 1997-05-07
WO1995033189A1 (en) 1995-12-07
CA2190627C (en) 2000-03-07
BR9507781A (en) 1997-08-19
ES2139212T3 (en) 2000-02-01
MY111464A (en) 2000-05-31
EP0760938A1 (en) 1997-03-12
DE69513517T2 (en) 2000-07-06

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