期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 23, 期 66, 页码 16722-16727出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201703300
关键词
diffusion-ordered spectroscopy (DOSY); dynamic nuclear polarisation; hyperpolarisation; NMR
资金
- Region Ile-de-France
- Agence Nationale de la Recherche [ANR-16-CE29-0012]
- Equipex Paris-en-Resonance [ANR-10-EQPX-09]
- European Research Council (ERC)
- TGIR-RMN-THC [FR3050]
- Agence Nationale de la Recherche (ANR) [ANR-16-CE29-0012] Funding Source: Agence Nationale de la Recherche (ANR)
Diffusion-ordered NMR spectroscopy (DOSY) is a powerful approach for the analysis of molecular mixtures, yet its application range is limited by the relatively low sensitivity of NMR. We show here that spectrally resolved C-13 DOSY data can be collected, in a single scan, for substrates hyperpolarised by dissolution dynamic nuclear polarisation (D-DNP), which provides signal enhancements of several orders of magnitude. For this we use a convection-compensation pulse scheme, which we also analyse by numerical simulation. The proposed method further allows the acquisition of several consecutive DOSY spectra in a single D-DNP experiment.
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