CONTRA: Improving the performance of dynamic investigations in natural abundance organic solids by mirror-symmetric constant-time CODEX
CONTRA: Improving the performance of dynamic investigations in natural abundance organic solids by mirror-symmetric constant-time CODEX
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DOI：
10.1016/j.jmr.2007.11.003
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发表时间：
2008-03-01
影响因子：
2.2
通讯作者：
deAzevedo, Eduardo Ribeiro
中科院分区：
文献类型：
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作者：
Reichert, Detlef;Pascui, Ovidiu;deAzevedo, Eduardo Ribeiro
我们对Codex 1D-MAS交换实验提出了一个微小但必要的修改。新的Contra方法只需要对原始序列进行很小的改变，与以前介绍的S-Codex方法相比，具有优势，因为它对有限脉冲长度引起的伪影不那么敏感。这种变型的性能，包括有限脉冲效应，得到了辛普森计算的证实，并在许多动力学系统上得到了演示。(C)2007 Elsevier Inc.保留所有权利。
We present a minor but essential modification to the CODEX 1D-MAS exchange experiment. The new CONTRA method, which requires minor changes of the original sequence only, has advantages over the previously introduced S-CODEX, since it is less sensitive to artefacts caused by finite pulse lengths. The performance of this variant, including the finite pulse effect, was confirmed by SIMPSON calculations and demonstrated on a number of dynamic systems. (C) 2007 Elsevier Inc. All rights reserved.