波谱学杂志 ›› 1996, Vol. 13 ›› Issue (3): 253-257.

• 研究论文 • 上一篇    下一篇

双重低通滤波的HMBC实验

孔祥铭1, 黄永仁2   

  1. 1. 上海石油化工研究院, 上海 201208;
    2. 上海华东师范大学分析测试中心, 上海 200062
  • 收稿日期:1995-09-04 修回日期:1995-11-12 出版日期:1996-06-05 发布日期:2018-01-17
  • 基金资助:
    国家自然科学基金和国家教委博士点基金资助项目

HMBC EXPERIMENT WITH DOUBLE LOW-PASS J-FILTERS

Kong Xiangming1, Huang Yongren2   

  1. 1. Shanghai Research institute of Petrochemical Technology, Shanghai 201208;
    2. Analytical Center, East China Normal University, Shanghai 200062
  • Received:1995-09-04 Revised:1995-11-12 Online:1996-06-05 Published:2018-01-17

摘要: 利用两个低通滤波器,在反转检测的异核远程相关实验(HMBC)中消除由直接相关引起的卫星峰.消除其对远程相关峰的干扰,不仅理论上说明了其原理,而且在实验上得到证实.同时此实验不会引起灵敏度的下降.

关键词: 低通滤波器, HMBC实验

Abstract: Two low-pass J-filters are introduced into HMBC experiment to suppress all direct J-coupling peaks and do away with the interference of direct J-coupling peaks and long range J-upling peaks which may occur in HMBC spectra of some molecules. Theoretical analysis and experiments show that the purpose of suppressing all direct J-coupling peaks can be achieved with almost no loss of intensity of long range J-coupling peaks.

Key words: Low-pass, J-filter, HMBC experiment