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Investigations Into Background Correction And Retention Time Alignment To Enhance Quantitative Chemometric Analysis Of Comprehensive Two-Dimensional Liquid Chromatography-Diode Array Detection Data, Robert Allen
Theses and Dissertations
The focus of the projects presented here was to develop possible solutions to three issues commonly encountered during chemometric analysis of comprehensive two-dimensional liquid chromatography diode array detector (LCxLC-DAD) data. The focus of the first project was to determine a means of performing background correction that removed two background ridges. The methods of simply subtracting out a mean blank sample, singular value decomposition based background correction (SVD-BC) and asymmetrically weighted least squares (AWLS) were compared. AWLS was found to be the only background correction technique to fully remove the ridges. However, AWLS was also found to attenuate the peak intensity …