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Uniform signal enhancement in MAS NMR of half-integer quadrupolar nuclei using quadruple-frequency sweeps

文献类型：期刊论文

作者Wang, Qiang2; Trebosc, Julien3; Li, Yixuan2,3,4,5; Lafon, Oliver3,6; Xin, Shaohui2; Xu, Jun2; Hu, Bingwen4,5; Feng, Ningdong2; Amoureux, Jean-Paul1,3,4,5; Deng, Feng2
刊名JOURNAL OF MAGNETIC RESONANCE
出版日期2018-08-01
卷号293页码:92-103
ISSN号1090-7807
关键词Half-integer Quadrupolar Nuclei Quadruple-frequency Sweeps Signal Enhancement Satellite Transitions Central Transition
DOI10.1016/j.jmr.2018.06.005
文献子类Article
英文摘要We introduce two MAS schemes that allow manipulating the satellite-transition (ST) populations of half integer quadrupolar nuclei, and which both exhibit improved robustness to the quadrupolar coupling constant (C-Q). These schemes, called quadruple frequency sweep (QFS) or quadruple WURST (QWURST) are the sums of two DFS or four WURST to efficiently invert the ST populations of nuclei subject to large or small quadrupole interactions, simultaneously. These quadruple sweeps methods only require 6% more rf-power than the double sweeps ones. We demonstrate, both numerically and experimentally, that the QFS and QWURST schemes benefit from robustness to C-Q and rf amplitude and offset and hence achieve uniform enhancement of the CT signal for Al-27 nuclei subject to different quadrupole interactions. Although the version of QFS with repetitive accumulation can achieve higher enhancement in the S/N of the Al-27 MAS spectrum, the final sensitivity gains mainly depend on the longitudinal relaxation time of different Al-27 sites. We also confirm that these schemes provide an improved acceleration of the P-31 -{Al-27} coherence transfer in PT-J-HMQC experiments. (C) 2018 Elsevier Inc. All rights reserved.
WOS关键词SOLID-STATE NMR ; CENTRAL-TRANSITION SIGNAL ; HYPERBOLIC SECANT PULSES ; SENSITIVITY ENHANCEMENT ; POPULATION TRANSFER ; ADIABATIC PULSES ; SW-FAM ; SPECTROSCOPY ; SPECTRA ; MQMAS
WOS研究方向Biochemistry & Molecular Biology ; Physics ; Spectroscopy
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000441226500012
资助机构National Natural Science Foundation of China(21733013 ; National Natural Science Foundation of China(21733013 ; Region Nord/Pas de Calais ; Region Nord/Pas de Calais ; Europe (FEDER) ; Europe (FEDER) ; CNRS ; CNRS ; USTL ; USTL ; ENSCL ; ENSCL ; CortecNet ; CortecNet ; IR-RMN-THC CNRS(Fr-3050) ; IR-RMN-THC CNRS(Fr-3050) ; (ANR-2010-jcjc-0811-01) ; (ANR-2010-jcjc-0811-01) ; 21573278 ; 21573278 ; 91745111 ; 91745111 ; 21611130104 ; 21611130104 ; 21622311) ; 21622311) ; National Natural Science Foundation of China(21733013 ; National Natural Science Foundation of China(21733013 ; Region Nord/Pas de Calais ; Region Nord/Pas de Calais ; Europe (FEDER) ; Europe (FEDER) ; CNRS ; CNRS ; USTL ; USTL ; ENSCL ; ENSCL ; CortecNet ; CortecNet ; IR-RMN-THC CNRS(Fr-3050) ; IR-RMN-THC CNRS(Fr-3050) ; (ANR-2010-jcjc-0811-01) ; (ANR-2010-jcjc-0811-01) ; 21573278 ; 21573278 ; 91745111 ; 91745111 ; 21611130104 ; 21611130104 ; 21622311) ; 21622311) ; National Natural Science Foundation of China(21733013 ; National Natural Science Foundation of China(21733013 ; Region Nord/Pas de Calais ; Region Nord/Pas de Calais ; Europe (FEDER) ; Europe (FEDER) ; CNRS ; CNRS ; USTL ; USTL ; ENSCL ; ENSCL ; CortecNet ; CortecNet ; IR-RMN-THC CNRS(Fr-3050) ; IR-RMN-THC CNRS(Fr-3050) ; (ANR-2010-jcjc-0811-01) ; (ANR-2010-jcjc-0811-01) ; 21573278 ; 21573278 ; 91745111 ; 91745111 ; 21611130104 ; 21611130104 ; 21622311) ; 21622311) ; National Natural Science Foundation of China(21733013 ; National Natural Science Foundation of China(21733013 ; Region Nord/Pas de Calais ; Region Nord/Pas de Calais ; Europe (FEDER) ; Europe (FEDER) ; CNRS ; CNRS ; USTL ; USTL ; ENSCL ; ENSCL ; CortecNet ; CortecNet ; IR-RMN-THC CNRS(Fr-3050) ; IR-RMN-THC CNRS(Fr-3050) ; (ANR-2010-jcjc-0811-01) ; (ANR-2010-jcjc-0811-01) ; 21573278 ; 21573278 ; 91745111 ; 91745111 ; 21611130104 ; 21611130104 ; 21622311) ; 21622311)
源URL[http://ir.wipm.ac.cn/handle/112942/13018]  
专题中国科学院武汉物理与数学研究所
通讯作者Amoureux, Jean-Paul; Deng, Feng
作者单位1.Bruker Biospin, F-67166 Wissembourg, France
2.Chinese Acad Sci, Natl Ctr Magnet Resonance Wuhan, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
3.Univ Lille, CNRS 8181, ENSCL, UCCS, F-59000 Lille, France
4.East China Normal Univ, Phys Dept, Shanghai 200062, Peoples R China
5.East China Normal Univ, Shanghai Key Lab Magnet Resonance, Shanghai 200062, Peoples R China
6.Inst Univ France, F-75231 Paris, France
推荐引用方式
GB/T 7714		 Wang, Qiang,Trebosc, Julien,Li, Yixuan,et al. Uniform signal enhancement in MAS NMR of half-integer quadrupolar nuclei using quadruple-frequency sweeps[J]. JOURNAL OF MAGNETIC RESONANCE,2018,293:92-103.
APA Wang, Qiang.,Trebosc, Julien.,Li, Yixuan.,Lafon, Oliver.,Xin, Shaohui.,...&Deng, Feng.(2018).Uniform signal enhancement in MAS NMR of half-integer quadrupolar nuclei using quadruple-frequency sweeps.JOURNAL OF MAGNETIC RESONANCE,293,92-103.
MLA Wang, Qiang,et al."Uniform signal enhancement in MAS NMR of half-integer quadrupolar nuclei using quadruple-frequency sweeps".JOURNAL OF MAGNETIC RESONANCE 293(2018):92-103.

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来源：武汉物理与数学研究所

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