Breaking the T-1 Constraint for Quantitative Measurement in Magic Angle Spinning Solid-State NMR Spectroscopy
文献类型：期刊论文
| 作者 | Hou, Guangjin2; Ding, Shangwu1; Zhang, Limin2; Deng, Feng2 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2010-04-28 |
| 卷号 | 132期号:16页码:5538-+ |
| 产权排序 | 第一 |
| 英文摘要 | Quantitative solid-state NMR experimental schemes that break the conventional T-1 constraint are described. The combination of broad-band homonuclear recoupling techniques and the conventional single pulse or cross-polarization (CP) schemes (referred as QUSP or QUCP) render the long T-1 of low-y spins no longer a constraint for obtaining quantitative NMR spectra. During the mixing time when dipolar recoupling occurs, the nonuniformly CP enhanced or recovered spin magnetization is redistributed under the reintroduced homonuclear dipole-dipole interactions so that uniformly enhanced or recovered magnetization is achieved when the system reaches the quasi-equilibrium state. It is shown that quantitative NMR spectra can be obtained for the recycle delays substantially shorter than the conventionally required 5T(1). In addition, the high efficiency gain can be achieved in QUSP and QUCP experiments with a relatively short recycle delay. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 波谱分析 |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | NUCLEAR-MAGNETIC-RESONANCE ; CROSS-POLARIZATION ; ROTATING SOLIDS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276991700002 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2000]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Natl Sun Yat Sen Univ, Dept Chem, Ctr Nanosci & Nanotechnol, Kaohsiung 80424, Taiwan 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Guangjin,Ding, Shangwu,Zhang, Limin,et al. Breaking the T-1 Constraint for Quantitative Measurement in Magic Angle Spinning Solid-State NMR Spectroscopy[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2010,132(16):5538-+. |
| APA | Hou, Guangjin,Ding, Shangwu,Zhang, Limin,&Deng, Feng.(2010).Breaking the T-1 Constraint for Quantitative Measurement in Magic Angle Spinning Solid-State NMR Spectroscopy.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,132(16),5538-+. |
| MLA | Hou, Guangjin,et al."Breaking the T-1 Constraint for Quantitative Measurement in Magic Angle Spinning Solid-State NMR Spectroscopy".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 132.16(2010):5538-+. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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