Comparison of various sampling schemes and accumulation profiles in covariance spectroscopy with exponentially decaying 2D signals
文献类型：期刊论文
| 作者 | Li, Yixuan1,2,3,5; Hu, Bingwen1,2; Chen, Qun1,2; Wang, Qiang3; Zhang, Zhengfeng3; Yang, Jun3; Noda, Isao4; Trebosc, Julien5; Lafon, Oliver5; Amoureux, Jean-Paul5 |
| 刊名 | ANALYST
 |
| 出版日期 | 2013 |
| 卷号 | 138期号:8页码:2411-2419 |
| 英文摘要 | Two-dimensional covariance (COV2D) spectroscopy offers an alternative approach to 2D Fourier transformation (FT2D) to obtain homo-nuclear correlation NMR spectra. Considerable saving in experimental time, without loss of resolution, can be achieved by incorporating COV2D with: (i) uniform sampling with a t(1) cut-off (CUO) or non-uniform sampling (NUS), and (ii) constant or Gaussian accumulation profiles. We find that covariance treatment, combined with the CUO sampling and Gaussian accumulation profile provides better gain in experimental time, with respect to that required with FT2D NMR. This is in contrast with the maximum entropy (MaxEnt) reconstruction for 2D spectra, which works better with the NUS scheme rather than with the CUO scheme. We further discuss the experimental conditions that define this optimum acquisition, and explain how these parameters can easily be optimized 'on the fly' according to the desired resolution, which is quite sample-dependent. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Analytical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | MAGNETIC-RESONANCE-SPECTROSCOPY ; HOMO-NUCLEAR CORRELATIONS ; NMR-SPECTROSCOPY ; MULTIDIMENSIONAL NMR ; PARAMETER-ESTIMATION ; HIGH-RESOLUTION ; SPECTRA ; DECOMPOSITION ; MOLECULES ; NONUNIFORM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316222300028 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/960]  |
| 专题 | 武汉物理与数学研究所_磁共振应用研究部 |
| 作者单位 | 1.E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China 2.E China Normal Univ, Shanghai Key Lab Magnet Resonance, Shanghai 200062, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan Ctr Magnet Resonance, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 4.Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA 5.Univ Lille North France, CNRS 8181, Unit Catalysis & Chem Solids, F-59652 Villeneuve Dascq, France |
| 推荐引用方式 GB/T 7714 | Li, Yixuan,Hu, Bingwen,Chen, Qun,et al. Comparison of various sampling schemes and accumulation profiles in covariance spectroscopy with exponentially decaying 2D signals[J]. ANALYST,2013,138(8):2411-2419. |
| APA | Li, Yixuan.,Hu, Bingwen.,Chen, Qun.,Wang, Qiang.,Zhang, Zhengfeng.,...&Deng, Feng.(2013).Comparison of various sampling schemes and accumulation profiles in covariance spectroscopy with exponentially decaying 2D signals.ANALYST,138(8),2411-2419. |
| MLA | Li, Yixuan,et al."Comparison of various sampling schemes and accumulation profiles in covariance spectroscopy with exponentially decaying 2D signals".ANALYST 138.8(2013):2411-2419. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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