US 12,332,327 B1
Nuclear magnetic resonance (NMR) spectrometer with replaceable horizontal sample tube
John C. Price, Longmont, CO (US); and Hilton W. Chan, Aurora, CO (US)
Assigned to Q Magnetics, LLC, Broomfield, CO (US)
Filed by Q Magnetics, LLC, Louisville, CO (US)
Filed on Jul. 1, 2022, as Appl. No. 17/856,798.
Claims priority of provisional application 63/218,464, filed on Jul. 5, 2021.
Int. Cl. G01R 33/30 (2006.01); G01R 33/46 (2006.01)
CPC G01R 33/307 (2013.01) [G01R 33/46 (2013.01)] 15 Claims
OG exemplary drawing
 
1. NMR spectrometer apparatus, comprising:
magnetic field producing apparatus comprising a pair of magnetic poles spaced apart from each other along a longitudinal magnet axis to provide a magnetic field in a magnetically sensitive space between the magnetic poles;
an elongate sample tube guide of non-ferromagnetic material extending through the magnetically sensitive space between the magnetic poles along a horizontal sample tube guide axis that is perpendicular to the longitudinal magnet axis, said sample tube guide extending from one lateral side of the magnet field producing apparatus to an opposite lateral side of the magnetic field producing apparatus and having a lumen through which a removable sample tube can be inserted to extend into the magnetically sensitive space, and
a radio frequency coil around the sample tube guide in the magnetically sensitive space.