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My Instrument Lab

The NMR Lab
Department of Chemistry & Biochemistry
Texas Tech University

This is a departmental instrument facility, available to all departmental researchers and also utilized by other University investigators.

Nuclear Magnetic Resonance Spectrometers or NMRs



We have three operational instruments at present.

A Varian UnityPLUS 300 MHz system donated by Texaco in 1998 and which we are still getting into full operation. It was essentially free but we've had some delays in getting it into service. It is primarily for proton observed experiments and has a sample changer that we hope to use for automatic analysis of teaching lab samples once the whole system is more operational.  Upgrades have been added and the magnet has been cryoshimmed correctly.  It is now available for routine proton use.
A new Varian MercuryPlus 300 MHz system was bought to upgrade our old IBM 300 magnet.  The magnet was modified and the new components were installed In September of 2003.

Our best system is a Varian UnityINOVA 500 MHz system installed in October, 1999. It is state of the art technology though we may not have all the bells and whistles to go with it. It is now the primary research NMR for the department and possibly the University. It is being utilized by researchers who need the better separation of the 500 MHz spectrum and the more advanced experiments available on the modern system.

Retired NMR Systems
As a graduate student I studied kinetics by NMR on the Department's older  system, a Varian XL-100 FTNMR, retired in the summer of 1986 to make way for the two IBM instruments.  Some pictures and a bit of descriptive text are available by clicking the name above.

An IBM AF-200 FTNMR that was used for routine proton and carbon experiments by students and researchers. The magnet is probably still in good shape should anyone want it, but the electronics are probably only good as a source of parts.  

An IBM AF-300 FTNMR that is used for routine proton and carbon spectra. It was the main research NMR in the department until the Fall of 1999.  Due to age it has problems and efforts are being made to obtain a grant to replace the entire console.

A Varian Gemini 200 system donated by Bayer which is used for routine, low resolution proton and carbon.  This instrument has died and will  not be repaired.  It is hoped that it will be upgraded for teaching lab use if funds are available.