| Improved resolution using symmetrically shifted pulses. | |
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MedLine Citation:
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PMID: 11700089 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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An approach to Hadamard phase encode the two halves of the F(1) dimension of a gHSQC experiment is presented. The phase encoding is achieved by excitation sculpting of the F(1) dimension using symmetrically shifted pulses. This approach (IMPRESS-improved resolution using symmetrically shifted pulses) increases the resolution of the F(1) dimension by exploiting spectral folding, but the folding is coded in the fashion of a Hadamard H(2) matrix. Editing of the IMPRESS spectra during processing sorts out spectral crowding which is a typical consequence of F(1) spectral folding. It is shown that for the same total experiment time, the IMPRESS-gHSQC experiment provides narrower peaks along the F(1) dimension compared to the normal gHSQC experiment. As a consequence of decreased linewidth, the peak height (sensitivity) is also increased. |
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Authors:
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K Krishnamurthy |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of magnetic resonance (San Diego, Calif. : 1997) Volume: 153 ISSN: 1090-7807 ISO Abbreviation: J. Magn. Reson. Publication Date: 2001 Nov |
Date Detail:
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Created Date: 2001-11-08 Completed Date: 2001-12-20 Revised Date: 2003-10-31 |
Medline Journal Info:
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Nlm Unique ID: 9707935 Medline TA: J Magn Reson Country: United States |
Other Details:
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Languages: eng Pagination: 124-32 Citation Subset: - |
Copyright Information:
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Copyright 2001 Academic Press. |
Affiliation:
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Discovery Chemistry Research, Lilly Research Laboratories, Indianapolis, IN 45285, USA. krishk@lilly.com |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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