Boosting Dissolution Dynamic Nuclear Polarization by Cross Polarization.
The efficiency of dissolution dynamic nuclear polarization can be boosted by Hartmann-Hahn cross polarization at temperatures near 1.2 K. This enables high throughput of hyperpolarized solutions with substantial gains in buildup times and polarization levels. During dissolution and transport, the (13)C nuclear spin polarization P((13)C) merely decreases from 45 to 40%.
†Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.
Aurélien
A
Bornet
‡Bruker Italia S.r.l., Viale V. Lancetti 43, 20158 Milano, Italy.
Roberto
R
Melzi
†Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.
Angel J
AJ
Perez Linde
§Paul Scherrer Institute, CH-5232 Villigen, Switzerland.
Patrick
P
Hautle
§Paul Scherrer Institute, CH-5232 Villigen, Switzerland.
Ben
B
van den Brandt
†Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.
Sami
S
Jannin
†Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.|⊥Département de Chimie, Ecole Normale Supérieure, 24 Rue Lhomond, 75231 Paris Cedex 05, France.|#Université Pierre-et-Marie Curie, Paris, France.|∇UMR 7203, CNRS/UPMC/ENS, Paris, France.
Geoffrey
G
Bodenhausen
TEMPO; cross polarization; dissolution DNP; hyperpolarization; radicals