Abstract: A rotor housing assembly for NMR spectroscopy. An elongate rotor has a distal drive end, a proximal end and an internal sample space positioned along its length between the drive and proximal ends. The rotor is driveable about a rotation axis by a drive gas flow. A rotor housing has an interior space in which the rotor is at least partially received. At least one first heated gas flow inlet is positioned opposite the internal sample space, through which a first heated gas flow is controllably flowable into the interior space to heat it and the rotor. At least a pair of spaced apart second heated gas flow outlets are axially spaced from the first heated gas flow inlet to controllably convey a second heated gas flow to heat distal and proximal areas of the sample space to minimize a temperature gradient extending axially within the sample space.

Abstract: A rotor housing assembly for NMR spectroscopy. An elongate rotor has a distal drive end, a proximal end and an internal sample space positioned along its length between the drive and proximal ends. The rotor is driveable about a rotation axis by a drive gas flow. A rotor housing has an interior space in which the rotor is at least partially received. At least one first heated gas flow inlet is positioned opposite the internal sample space, through which a first heated gas flow is controllably flowable into the interior space to heat it and the rotor. At least a pair of spaced apart second heated gas flow outlets are axially spaced from the first heated gas flow inlet to controllably convey a second heated gas flow to heat distal and proximal areas of the sample space to minimize a temperature gradient extending axially within the sample space.

Abstract: Snap-in bushings are disclosed that enable sealing of sample chambers in MAS-NMR rotors for high pressure and/or high temperature operation that enhance pressure limits up to about 400 bar and temperature limits up to at least about 250° C.

Abstract: NMR microprobe detectors and methodologies that provide enhanced signal sensitivity for low-volume sample detection and analysis are described. In one embodiment the microprobe detector is a flat wire detector with a strip conductor having a length and width and ratio greater than 5 with a substantially uniform surface positioned on a low loss substrate in contact with a sample holder having a generally thin wall or at least a thin portion near where the sample probing and analysis occur.

Abstract: Snap-in bushings are disclosed that enable sealing of sample chambers in MAS-NMR rotors for high pressure and/or high temperature operation that enhance pressure limits up to about 400 bar and temperature limits up to at least about 250° C.