| 极化转移INEPT与DEPT以及季碳脉冲序列等方法在~(13)CNMR测定中的应用 |
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| 引用本文： | 孟怡,顾娟.极化转移INEPT与DEPT以及季碳脉冲序列等方法在~(13)CNMR测定中的应用[J].中国药科大学学报,1988(2):149-153. |
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| 作者姓名： | 孟怡 顾娟 |
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| 作者单位： | 中国药科大学理化测试中心
(孟怡)，中国药科大学无机化学教研室(顾娟) |
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| 摘 要： | NMR测定灵敏度较低,对于那些天然丰度低而磁矩又较小的核,这一问题更为突出。70年代末80年代初,出现了一系列基于极化转移技术的多脉冲序列方法如INEPT~*和DEPT~(**)等,用于测定~(18)CNMR谱,极大地提高了灵敏度,其增强因子与偶极—偶极弛豫是否
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| 关 键 词： | INEPT DEPT 谱编辑技术 多脉冲序列方法 ~(13)CNMR |
APPLICATION OF POLARIZATION TRANSFER TECHNIQUE INEPT, DEPT AND QUATERNARY CARBON PULSE SEQUENCE IN ~(13)CNMR DETERMINATION |
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| Meng Yi and Gu Juan.APPLICATION OF POLARIZATION TRANSFER TECHNIQUE INEPT, DEPT AND QUATERNARY CARBON PULSE SEQUENCE IN ~(13)CNMR DETERMINATION[J].Journal of China Pharmaceutical University,1988(2):149-153. |
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| Authors: | Meng Yi and Gu Juan |
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| Institution: | Physico-Chemical Analysis Laboratory; ~*Department of Inorganic Chemistry |
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| Abstract: | Polarization transfer technique INEPT, DEPT and Quaternary Carbon Pulse Sequence (QUAT) were tested in ~(13)CNMR determination of 2,3-dihydroxymethyl-1, 4-bis(3-hydroxy-4-methoxyphenyl)butane. Four subspectra containing only C, CH, CH_2 or CH_3 were obtained using Spectral Editing with proton-decoupling DFPT and QUAT. The proton coupling INEPT and DEPT were used for measuring the coupling constants~1 J(CH). By comparison with the off-resonance proton-decoupling assignment technique and routine proton coupling method, INEPT and DEPT are more sensitive, selective and time-saving. |
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| Keywords: | INEPT DEPT Spectral editing Multipulse sequence method ~(13)CNMR |
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