基于固体核磁共振多次交叉极化的定量检测优化技术
The Improved Solid-state NMR Quantitative Method on the Bases of Multiple-cross Polarization Technique
基于固体核磁共振多次交叉极化的定量检测优化技术 |
| 董洪春,张志兰,王宁,唐丹丹,裘子慧,舒婕 |
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The Improved Solid-state NMR Quantitative Method on the Bases of Multiple-cross Polarization Technique |
| DONG Hongchun,ZHANG Zhilan,WANG Ning,TANG Dandan,QIU Zihui,SHU Jie |
| 图3 L-丙氨酸粉末样品中CH3、CH和CO三种基团的1H→13C交叉极化动力学曲线图，使用的技术分别为(a) ramp-CP、 (b) LGCP、(c) multiCP和(d) MLGCP-1；L-丙氨酸的归一化积分比例较理论值的百分误差，使用的技术分别为(e) ramp-CP、(f) LGCP、(g) multiCP和(h) MLGCP-1.红色背景区域实验百分误差小于5% |
| Fig. 3 The cross polarization 1H→13C dynamic curves of CH3, CH and CO groups in L-alanine by using the schemes of (a) ramp-CP, (b) LGCP, (c) multiCP and (d) MLGCP-1; The percentage errors of L-alanine were calculated according to the normalized peak integrals, by using the schemes of (e) ramp-CP, (f) LGCP, (g) multiCP and (h) MLGCP-1. The red background highlights the regions with percentage errors less than 5% |
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