Quad-Fast-MAS H/X/Y/Z

Quad-Fast-MAS HR-Solids
H/X/Y/Z or H-F/X/Y/Z

4 Efficient Channels,  3 Multinuclear

  •   True solids quad resonance
  •   High resolution – 3 Hz 1H
  •   2H high-power decoupling
  •   Broadband H/X/Y/Z
  •   Fast-MAS 3mm (1.3 mm coming)
  •   Widest VT range
  •   NB or WB, all fields
  •   Four efficient channels
  •   Fast, efficient MAG coil (option)
  •   To 1300 MHz (coming)
  •   Minimal backgrounds

500 MHz, NB, H/X/Y/Z

3 mm MAS Probe with
3 Broadband Channels

Quad-Fast-MAS HR-Solids H/X/Y/Z Applications

500 MHz Proton Detected 1H NMR of Protein GB1.

(A) Simple 2H decoupled (10 kHz cw) 1H spectrum. The peak at 5 ppm is residual water

(B) Same as A, but water suppressed.

(C) & (D) The expanded region (red box in B) for methyl protons without and with 2H decoupling, respectively. Linewidths at half maximum are shown in Hz.  (Note the major linewidth reduction from 10-kHz 2H decoupling.)

Bibhuti Das and Paul Ellis, Doty Scientific, Inc., and  Professor Leonard Mueller, Univ.  of  CA Riverside.

 

Quad-Fast-MAS H-F/X/Y/Z  1H NMR using  a novel line narrowing CRAMPS pulse sequence

500 MHz Proton Detected 1H NMR of Adamantane and Protein GB1.

(A) Adamantane 1H spectrum recorded with only 10 kHz MAS (solid line) and non-spin condition (dotted).

(B) 2H decoupled 1H spectrum from 100% back exchanged 2H, 13C, 15N labeled microcrystalline protein GB1.

Bibhuti Das and Paul Ellis, Doty Scientific, Inc., and  Professor Leonard Mueller, Univ. of California Riverside.

Fast-MAS H-F/X/Y/Z 1H NMR of HMB At 50 kHz MAS

2H Spectra of 98% Deuterated Proline Powder.

(A) 2H spectrum was recorded under 20 kHz MAS using a 3 mm Doty H-F/X/Y/Z probe and five small tip angle (22.5 degree each) RESPIRATION pulses.

(B) 2H nutation for 300 Watt RESPIRATION pulses.

1H Spectrum of Glycine

1H spectrum was recorded with 13.7 kHz MAS using a 3 mm Doty H-F/X/Y/Z probe.

Acknowledgement:  NIH  R43GM117905

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