An investigation of the effect of pulse angle and interpulse delay time on the sensitivity of the fourier transformed 13C NMR spectrum of α-santonin

Simple item page
dc.contributor.committeeMemberWillcott, Mark Robert, III
dc.contributor.committeeMemberDeming, Stanley N.
dc.contributor.committeeMemberAlbright, Thomas A.
dc.contributor.committeeMemberMartin, Gary E.
dc.creatorChampion, William L., Jr.
dc.date.accessioned2023-12-07T16:12:15Z
dc.date.available2023-12-07T16:12:15Z
dc.date.issued1979
dc.description.abstractA two factor, four level factorial design over a large region of factor space indicates that a second order polynomial can be used to describe the relationship of pulse angle and delay time on the time normalized sensitivity of each of the 13C resonances of [alpha]-santonin. The response surfaces generated from these models are all hyperbolic. For the slower relaxing nuclei the maximum response is in the region of small pulse angles (~35°) and short delay times. A local optimum also exists in the region of intermediate pulse angles and long delay times . For the faster relaxing nuclei the maximum response is in the region of intermediate pulse angles (~55°) and short delay times. As expected, the faster relaxing nuclei show greater sensitivity than do the slower relaxing nuclei. In addition, the region of maximum response is broader for the faster relaxing nuclei. The intensity of the free induction decay and several combinations of individual peak heights are evaluated as possible assessing functions to determine the overall spectral quality. To be effective, an assessing function must be chosen or designed to determine accurately the worth of the response to the experimenter. As is typical in a multiple response system, there exists no one "best" or universal assessing function. The utility, merits, and drawbacks of these assessing functions are discussed.
dc.description.departmentChemistry, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other6172140
dc.identifier.urihttps://hdl.handle.net/10657/15517
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleAn investigation of the effect of pulse angle and interpulse delay time on the sensitivity of the fourier transformed 13C NMR spectrum of α-santonin
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCollege of Natural Sciences and Mathematics
thesis.degree.departmentChemistry, Department of
thesis.degree.disciplineChemistry
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Champion_1979_6172140.pdf
Size:
4.4 MB
Format:
Adobe Portable Document Format
Download

Collections

Digitized Theses and Dissertations (1940-2009)