¹³C-Formate as an indirect low-temperature ¹H lineshape polarimeter
File(s)
Published version
Author(s)
Elliott, Stuart J
Stern, Quentin
Jannin, Sami
Type
Journal Article
Abstract
1H polarization quantification is important for dissolution-dynamic nuclear polarization (dDNP) but can be cumbersome due to the requirement of acquiring thermal equilibrium signals and measurements that are complicated by large background signals. 1H nuclear magnetic resonance (NMR) spectra can also be deleteriously influenced by line distortions linked with radiation damping from 1H DNP and cannot be used for accurate calculation of 1H polarization. Determining 1H polarization via immediate 13C lineshape analysis of a simple molecule removes such complications. We present 13C-sodium formate as a straightforward system for indirect 1H polarimetry. The 13C NMR spectra acquired under dDNP conditions have distinct features that are readily reproduced with 13C lineshape simulations. 1H polarizations built-up during 1H DNP were indirectly inferred by fitting simulations to 13C lineshapes. We provide the MATLAB scripts used for 13C lineshape analysis in order that the method can be readily implemented in other laboratories.
Date Issued
2024-12-01
Date Acceptance
2024-09-01
Citation
Journal of Magnetic Resonance Open, 2024, 21
ISSN
2666-4410
Publisher
Elsevier
Journal / Book Title
Journal of Magnetic Resonance Open
Volume
21
Copyright Statement
© 2024 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/)
License URL
Identifier
10.1016/j.jmro.2024.100162
Subjects
ANISOTROPY
Biochemical Research Methods
Biochemistry & Molecular Biology
C-13 -Sodium formate
CROSS-POLARIZATION
DNP
DNP, Ddnp
DYNAMIC NUCLEAR-POLARIZATION
H-1 spin polarization
Hyperpolarization
Life Sciences & Biomedicine
Lineshape polarimetry
NMR
Peak asymmetry
Physical Sciences
Physics
Physics, Atomic, Molecular & Chemical
Science & Technology
Spectroscopy
SPIN
Technology
WATER
Publication Status
Published
Article Number
100162
Date Publish Online
2024-09-23