研究论文

一种新的DEPT 谱编辑方法

  • 金亚莹 ,
  • 陈志伟
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  • 厦门大学电子科学系,福建省等离子体与磁共振研究重点实验室,福建厦门 361005
金亚莹(1990-),女,浙江台州人,硕士研究生,研究方向为核磁共振新技术及应用.*通讯联系人:陈志伟,电话:13030892886, E-mail: chenzhiwei@xmu.edu.cn.

收稿日期: 2014-06-12

  修回日期: 2015-01-09

  网络出版日期: 2015-03-05

基金资助

国家自然科学基金资助项目(81101037).

A New DEPT Spectral Editing Method

  • JIN Ya-ying ,
  • CHEN Zhi-wei
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  • Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Research, Xiamen University, Xiamen 361005, China)
*Corresponding author:CHEN Zhi-wei, Tel: +86-13030892886, E-mail: chenzhiwei@xmu.edu.cn.

Received date: 2014-06-12

  Revised date: 2015-01-09

  Online published: 2015-03-05

Supported by

国家自然科学基金资助项目(81101037).

摘要

提出一种新的基于多元线性回归计算的无畸变极化转移增益法(DEPT)谱编辑方法.该方法使用多元线性回归对谱图中的杂信号进行拟合,获得最佳拟合系数,然后将拟合系数代入拟合公式,通过该公式对DEPT 子谱进行计算,去除杂信号,最终分别得到纯净的CH3、CH2、CH 子谱图.实验结果证明,使用新方法对DEPT 谱进行编辑能够很好地减少杂信号的干扰,得到只含有CHn 信号的子谱.新方法为碳谱的解析尤其是复杂和密集的谱线的解析提供了方便.

本文引用格式

金亚莹 , 陈志伟 . 一种新的DEPT 谱编辑方法[J]. 波谱学杂志, 2015 , 32(1) : 59 -66 . DOI: 10.11938/cjmr20150107

Abstract

This paper presents a new DEPT spectral editing method. Multivariate linear regression was used to analyze the spectra and calculate the best fitting coefficients. The obtained fitting results were then used to calculate DEPT subspectra, yielding separated CH3, CH2 and CH signals. The new spectral editing method was shown to perform well on DEPT spectra, especially the complex ones.

参考文献

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