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The Application of Simple and Easy to Implement Decoupling Pulse Scheme Combinations to Effect Decoupling of Large J Values with Reduced Artifacts
Author
Source
International Journal of Spectroscopy
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-29
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Of the various problems in decoupling one nucleus type from another using standard decoupling pulse schemes for broadband decoupling, a particular challenge is to effect full, artifact-free decoupling when the size of the coupling constant is very large.
Herein it is demonstrated that 1H decoupling of the 31P NMR spectrum of diethyl phosphonate {HP(=O)(OCH2CH3)2} can be accomplished with reduced artifacts despite the large JH,P1 value of 693 Hz by using a combination of decoupling pulse schemes involving continuous-wave (CW) irradiation and either adiabatic-pulse decoupling (APD), MPF decoupling, or traditional composite-pulse decoupling (CPD) schemes such as WALTZ or GARP.
The considered strategy is simple, efficient, and easy to implement on most instruments.
The best result was attained for a combination of CW and CPD using GARP with a standard pulse width of 60 μs.
Altogether, the advantages of the methodology include low power requirements, complete decoupling, tolerance of a range of large J values, large bandwidth for normal-sized J values, and the suppression of sidebands.
American Psychological Association (APA)
Klika, Karel D.. 2014. The Application of Simple and Easy to Implement Decoupling Pulse Scheme Combinations to Effect Decoupling of Large J Values with Reduced Artifacts. International Journal of Spectroscopy،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-460681
Modern Language Association (MLA)
Klika, Karel D.. The Application of Simple and Easy to Implement Decoupling Pulse Scheme Combinations to Effect Decoupling of Large J Values with Reduced Artifacts. International Journal of Spectroscopy No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-460681
American Medical Association (AMA)
Klika, Karel D.. The Application of Simple and Easy to Implement Decoupling Pulse Scheme Combinations to Effect Decoupling of Large J Values with Reduced Artifacts. International Journal of Spectroscopy. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-460681
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-460681