2012年10月4日
Microcoils and microsamples in solid-state NMR
SOLID STATE NUCLEAR MAGNETIC RESONANCE
- 巻
- 47-48
- 号
- 開始ページ
- 1
- 終了ページ
- 9
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.ssnmr.2012.09.002
- 出版者・発行元
- ACADEMIC PRESS INC ELSEVIER SCIENCE
Recent reports on microcoils are reviewed. The first part of the review includes a discussion of how the geometries of the sample and coil affect the NMR signal intensity. In addition to derivation of the well-known result that the signal intensity increases as the coil size decreases, the prediction that dilution of a small sample with magnetically inert matter leads to better sensitivity if a tiny coil is not available is given. The second part of the review focuses on the issues specific to solid-state NMR. They include realization of magic-angle spinning (MAS) using a microcoil and harnessing of such strong pulses that are feasible only with a microcoil. Two strategies for microcoil MAS, the piggyback method and magic-angle coil spinning (MACS), are reviewed. In addition, MAS of flat, disk-shaped samples is discussed in the context of solid-state NMR of small-volume samples. Strong RF irradiation, which has been exploited in wide-line spectral excitation, multiple-quantum MAS (MQMAS), and dipolar decoupling experiments, has been accompanied by new challenges regarding the Bloch-Siegert effect, the minimum time resolution of the spectrometer, and the time scale of pulse transient effects. For a possible solution to the latter problem, recent reports on active compensation of pulse transients are described. (C) 2012 Elsevier Inc. All rights reserved.
- リンク情報
-
- DOI
- https://doi.org/10.1016/j.ssnmr.2012.09.002
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201202216510228570
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/23083521
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000310650600001&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1016/j.ssnmr.2012.09.002
- ISSN : 0926-2040
- eISSN : 1527-3326
- J-Global ID : 201202216510228570
- PubMed ID : 23083521
- Web of Science ID : WOS:000310650600001