We offer a range of services to external organizations, including standard one- and two-dimensional proton, carbon, fluorine, and phosphorus experiments as well as more exotic nuclei like lithium, deuterium, nitrogen, boron, silicon, and aluminum.

What services do you provide?

  • We can perform variable temperature (-100 to +100C) experiments and collect solvent suppressed spectra in 90% H2O and no-D solvents.
  • We offer the determination of solute diffusion values using DOSY.
  • We pride ourselves on prompt sample turnaround times (often same-day service).
  • Using our six instruments, including our three autosamplers, we have the capability to deliver superior results for small, one sample jobs up to the large automation of hundreds of samples per week.

What do your facilities offer?

  • The NMR laboratory provides access to modern spectroscopic techniques for analysis of compounds ranging from small molecules (e.g., synthetic intermediates and organometallic compounds) to polymers.
  • The facility houses six solution-state spectrometers, ranging in field strength from 300 to 500 MHz.
  • Three of these are equipped with autosamplers for routine use.
  • The remaining instruments are operated in "hands-on" mode and permit a wider range of experiments, variable temperature capability, and longer experiment times.
  • Many different nuclei may be observed, though 1H and 13C are the most common.

Are there guidelines for sample preparation?

  • Samples to be analyzed by personnel in the NMR laboratory should be delivered to the NMR lab in a 5 mm NMR tube dissolved in an appropriate deuterated solvent such that the height of the sample in the tube is 5 cm (~ 0.7 mL total volume) for Varian spectrometers or 4 cm (0.55 mL solvent) for Bruker spectrometers.
  • We recommend 507 quality tubes for the 300 MHz instruments and 528 quality tubes for the 500 MHz instruments.
  • If you do not have NMR tubes or solvents, we can provide them for you at our cost.
  • Samples run on the 300 autosampler must be in eight (8) inch 5 mm NMR tubes. 7, 8 or 9-inch 5 mm tubes may be used on all other systems. The parameters for the hands-on instruments can be adjusted according to individual needs.

How are rates determined?

  • We bill according to the field strength of the instrument used plus an operator charge for the amount of time required to set up, process, and plot the spectrum.
  • Please provide us with a billing address and PO number, if required by your company.
  • The University does not accept credit card payments.

What are the charges?

  • 500 MHz: $96/hour
  • 400 MHz: $84/hour
  • 500 MHz autosampler: $32/spectrum (includes operator charge)
  • 400 MHz autosampler: $27/spectrum (includes operator charge)
  • 300 MHz autosampler: $23/spectrum (includes operator charge)
  • Operator charge: $135/hour

How do I submit samples?

  • Fill out the sample submission form, which must be included with all samples.

How do I get results?

  • Results can be picked up in person, faxed or mailed as hard-copies or provided as electronic raw data files or in PDF format.
  • Once the service is completed, NMR personnel will return any unused substance to the company, if requested.

Contact

  • Mailing address
    Nuclear Magnetic Resonance Laboratory
    Department of Chemistry
    University of Minnesota
    207 Pleasant St SE
    Minneapolis, MN 55455

    • Nuclear Magnetic Resonance Laboratory
    • 194 & 196 Kolthoff Hall, 225 Pleasant St SE
    • Letitia Yao, Ph.D., Director
    • yaoxx006@umn.edu
    • (612) 625-8374