TY  - JOUR
AU  - Qiu, L.
AU  - Zhang, Y.
AU  - Krause, H.-J.
AU  - Braginski, A. I.
AU  - Burghoff, M.
AU  - Trahms, L.
TI  - Nuclear magnetic resonance in the earth's magnetic field using a nitrogen-cooled superconducting quantum interference device
JO  - Applied physics letters
VL  - 91
SN  - 0003-6951
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PreJuSER-59558
SP  - 072505
PY  - 2007
N1  - Record converted from VDB: 12.11.2012
AB  - The authors recorded nuclear magnetic resonance (NMR) spectra of water, benzene, fluorobenzene, and 2,2,2-trifluoroethanol in the earth's magnetic field (EMF) using a nitrogen-cooled superconducting quantum interference device (SQUID). In trifluoroethanol, the broadband detection characteristics of the SQUID with a noise floor of about 70 fT/root Hz enabled authors to simultaneously observe fluorine and proton spectra at 1940 and 2060 Hz Larmor frequency, reflecting their heteronuclear J coupling in the high-field limit without showing a measurable chemical shift. To reduce the noise in EMF-NMR, the authors suggest the use of frequency-adjusted averaging, which compensates line broadening due to EMF fluctuations. (C) 2007 American Institute of Physics.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000248866600064
DO  - DOI:10.1063/1.2771060
UR  - https://juser.fz-juelich.de/record/59558
ER  -