The Spectrometers And Workstations

About The Spectrometers

Five spectrometers, with proton frequencies from 300 MHz to 500 MHz, are available for hands-on use 24 hours a day. The different configurations provide a wide range of capabilities to meet the needs for simple routine analysis as well as sophisticated, cutting-edge experiments and applications. Several workstations are available for off-line processing.

AV-500

The AV-500 is capable of liquids and solid state experiments. Two new liquids probes are available, a Z-gradient Broad Band probe covering 103Rh (15.73 MHz) to 31P, and a Z-gradient Triple Broad Band Inverse detection (TBI) probe with the 3rd channel tuned for 31P. In addition, the probes from the DRX-500 (e.g., the TBI with a fixed 13C channel) can also be used with this instrument. With most liquids probes, routine Variable Temperature operation over the range of +/-120 °C is available. It is possible to operate over an extended range of +/- 150 °C by request.

A 4 mm 1H/13C High Resolution Magic Angle Spinning probe (HR-MAS) and a 4 mm Broad Band CP-MAS probe are availabe.

Equipment Description:

Avance electronics console.
BOSS II 28 gradient shim system and sample transport, 2H lock. 3-Channel rf system. 1MHz maximum sweep width.
Linux based data system with 512M RAM, 2 GHz P4, 40GB disk, 18 " LCD display, CD-ROM burner.


In service since 2005, this instrument was partially funded by NIH grant 1S10RR016634-01.



DRX-500

Several probes are available for a variety of applications. The default probe is a 5 mm Z-gradient Broad Band probe. Routine Variable Temperature operation over the range of +/-120 °C is available. It is possible to operate over an extended range of +/- 150 °C by request. Additional probes include a 5 mm triple gradient Triple Broad Band Inverse detection (TBI) probe with the 3rd channel tuned for 13C, 10 mm broad band and a 1H/19F probe.

Equipment Description:

Avance electronics console installed on the magnet previously part of a (1984) Bruker AM-500.
BOSS II 28 gradient shim system and sample transport, 2H lock. 3-Channel rf system. 150 kHz maximum sweep width.
Linux based data system with 512M RAM, 3 GHz P4, 36 GB disk, 19 " LCD display.


In service since 1997, this instrument was funded in part by NSF grant CHE 9633007 (upgrade to DRX console), the original AM-500 was partially funded by NIH grant RR 02424A-01 and NSF grant CHE 82-08992.



AVB-400

This instrument is set up with a computer-tuned (ATMA) 5 mm Z-gradient broad band (109Ag to 31P) probe. In addition the commonly measured 1H 13C, 31P, etc., spectra, a large number of nuclei can be observed. Routine Variable Temperature operation over the range of +/-120 °C is available. It is possible to operate over an extended range of +/- 150 °C by request.

Equipment Description:

Avance electronics console installed on the magnet previously part of a (1987) Bruker AM-400.
BOSS 20 gradient shim system and sample transport, 2H lock. 2-Channel rf system. 150 kHz maximum sweep width.
Linux based data system with 512M RAM, 2 GHz P4, 40GB disk, 19 " LCD display, CD-ROM burner.


In service since 2003, this instrument was funded in part by NSF grant CHE-0130862. The original AM-400 was partially funded by NIH grant S10 RR 03353-01 and NSF grant CHE 8703048.



AVQ-400

This instrument is set up with a Z-gradient 5 mm QNP (Quad Nucleus) probe for measuring proton, carbon, phosphorus and fluorine spectra without having to tune the probe. The probe is optimized for observing nuclei other than protons. Routine Variable Temperature operation over the range of +/-120 °C is available. It is possible to operate over an extended range of +/- 150 °C by request.

Equipment Description:

Avance electronics console installed on the magnet previously part of a (1989) Bruker AMX-400.
BOSS 20 gradient shim system and sample transport, 2H lock. 2-Channel rf system. 1 MHz maximum sweep width.
Linux based data system with 512M RAM, 2 GHz P4, 40GB disk, 18 " LCD display, CD-ROM burner.


In service since 2003, this instrument was funded in part by NSF grant CHE-0130862. The original AMX-400 magnet was partially funded by NSF grant HE79-26291-A02.


AV-300

This instrument is set up with a 5 mm Z-gradient dual 1H/13C probe, optimized for direct carbon observation. It is also possible to observe 2H and 19F. VT experiments are not normally done on this instrument, but can be set up if needed. A non-gradient inverse broad-band observe probe is also available.

Equipment Description:

Avance electronics console installed on the magnet previously part of a (1992) Bruker AMX-300.
BOSS 20 gradient shim system and sample transport, 2H lock. 2-Channel rf system. 150 kHz maximum sweep width.
Linux based data system with 512M RAM, 2 GHz P4, 40GB disk, 18 " LCD display, CD-ROM burner.


In service since 2003, this instrument was funded in part by NSF grant CHE-0130862. The original AMX-300 system was partially funded by NSF grant CHE 911557.  



About The Workstations

Linux PCs, SGI Indigo2

The facility has four Linux based workstations and an older IRIX based workstation for off-line processing. We use the same program, xwin-nmr,  as on all of the instruments.  Xwin-nmr is part of the Bruker NMR Suite package. The Bruker TopSpin package is also available on two of the workstations. Other programs are available for spin simulation, etc.


(instruments.html, last modified 04/20/06, Rudi Nunlist)