Low-power cross polarization in fast magic-angle spinning NMR experiments
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| Title: | Low-power cross polarization in fast magic-angle spinning NMR experiments |
|---|---|
| Authors: | Lange, Adam1, Scholz, Ingo1, Manolikas, Theofanis1, Ernst, Matthias1, Meier, Beat H. beat.meier@gmx.ch |
| Source: | Chemical Physics Letters. Jan2009, Vol. 468 Issue 1-3, p100-105. 6p. |
| Subjects: | Polarization (Electricity), Nuclear magnetic resonance, Nuclear cross sections, Magnetic coupling, Protein spectra |
| Abstract: | Abstract: We describe a low-power approach for heteronuclear cross-polarization (CP) at high magic-angle spinning (MAS) frequencies. It is based on second-order CP at the n =0 Hartmann–Hahn condition. The mechanism for the polarization transfer in the low-power CP experiment relies on second-order cross terms between homonuclear and heteronuclear dipolar couplings. At a MAS frequency of 65kHz, rf-field amplitudes below 10kHz are sufficient to efficiently transfer polarization from 1H to 13C. The low-rf field requirements of this approach make it well suited for the investigation of proteins and other temperature-sensitive samples without the risk of sample heating and degradation. [Copyright &y& Elsevier] |
| Copyright of Chemical Physics Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 35938871 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.cplett.2008.11.089 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 100 Subjects: – SubjectFull: Polarization (Electricity) Type: general – SubjectFull: Nuclear magnetic resonance Type: general – SubjectFull: Nuclear cross sections Type: general – SubjectFull: Magnetic coupling Type: general – SubjectFull: Protein spectra Type: general Titles: – TitleFull: Low-power cross polarization in fast magic-angle spinning NMR experiments Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lange, Adam – PersonEntity: Name: NameFull: Scholz, Ingo – PersonEntity: Name: NameFull: Manolikas, Theofanis – PersonEntity: Name: NameFull: Ernst, Matthias – PersonEntity: Name: NameFull: Meier, Beat H. IsPartOfRelationships: – BibEntity: Dates: – D: 13 M: 01 Text: Jan2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 00092614 Numbering: – Type: volume Value: 468 – Type: issue Value: 1-3 Titles: – TitleFull: Chemical Physics Letters Type: main |
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