Over 35% liquid-state 13C polarization obtained via dissolution dynamic nuclear polarization at 7 T and 1 K using ubiquitous nitroxyl radicals

被引：47

作者：

Cheng, Tian ^{[1
]}

Capozzi, Andrea ^{[1
]}

Takado, Yuhei ^{[1
]}

Balzan, Riccardo ^{[1
]}

Comment, Arnaud ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys Biol Syst, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 48期

基金：

瑞士国家科学基金会;

关键词：

RODENT MRI SCANNER; NMR-SPECTROSCOPY; DNP-NMR; OPERATION;

D O I：

10.1039/c3cp53022a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The most versatile method to increase liquid-state C-13 NMR sensitivity is dissolution dynamic nuclear polarization. The use of trityl radicals is usually required to obtain very large C-13 polarization via this technique. We herein demonstrate that up to 35% liquid- state 13C polarization can be obtained in about 1.5 h using ubiquitous nitroxyl radicals in C-13-labeled sodium salts by partially deuterating the solvents and using a polarizer operating at 1 K and 7 T.

引用

页码：20819 / 20822

页数：4

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