Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Chemical analysis
Reexamination Certificate
2007-01-18
2008-07-22
Barlow, Jr., John E (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Chemical analysis
C702S032000
Reexamination Certificate
active
07403859
ABSTRACT:
A chromatographic analyzer is provided for facilitating curve fitting by means of the linear least-square method for a chromatogram that contains a plurality of overlapping peaks. The present invention is characterized by a chromatographic data processor for executing data processing of a chromatogram obtained by separating a sample to be measured using a column and detecting the separated sample, wherein fitting processing is executed to each peak in an arbitrary time region having the plurality of peaks of the chromatogram starting from the front side of the time region or from the back side of the time region, and the processed peaks are subtracted from the chromatogram in the time region so that the plurality of peaks in the chromatogram can be separated from one another. Thus, the plurality of overlapping peaks, particularly three or more overlapping peaks in the chromatogram can be easily separated from one another only by defining some setting conditions.
REFERENCES:
patent: 4807148 (1989-02-01), Lacey
patent: 4941101 (1990-07-01), Crilly
patent: 5277871 (1994-01-01), Fujii et al.
patent: 5291426 (1994-03-01), Collins et al.
patent: 6029115 (2000-02-01), Tracy et al.
patent: 6393368 (2002-05-01), Ito et al.
patent: 6529836 (2003-03-01), Ito et al.
patent: 6549861 (2003-04-01), Mark et al.
patent: 6815668 (2004-11-01), Miller et al.
patent: 7200494 (2007-04-01), Ito et al.
patent: 47-45556 (1972-11-01), None
patent: 49-113693 (1974-10-01), None
patent: 60-022659 (1985-02-01), None
patent: 62-85850 (1987-04-01), None
patent: 63-151851 (1988-06-01), None
patent: 6-324029 (1994-11-01), None
patent: 9-54071 (1997-02-01), None
patent: 9-503064 (1997-03-01), None
Goodman, K; Brenna, T., “Curve Fitting for Restoration of Accuracy for Overlapping Peaks in Gas Chromatography/Combustion Isotope Ratio MAS Spectrometry” Analytical Chemistry; vol. 66, No. 8; Apr. 1994; pp. 1204-1301.
Toft, J. et al., Non-Linear Curve Fitting of Bilinear Data Using Orthogonal Projections for Rank Analysis, Applications to Gas Chromatography/Infrared Specttrometry and Variable Temperature Infrared Studies.
Z (Cont) Vibrational Spectroscopy; vol. 7, No. 2; Jul. 1994; pp. 125-137.
Deguchi Kisaburo
Ito Masahito
Barlow Jr. John E
Washburn Douglas N
LandOfFree
Method and apparatus for chromatographic data processing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for chromatographic data processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for chromatographic data processing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3967410