| |
|
|
|
Bruker Avance II 400 MHz NMR Spectrometer We are fortunate to have recently received a grant from the National Science Foundation (CHE-0521075) through the Major Research Instrumentation program for a new NMR spectrometer. The system we chose is a Bruker Avance II 400 MHz spectrometer system. The magnet is a 9.4T superconducting solenoid operating at a nominal proton frequency of 400 MHz. The magnet is actively shielded to produce a minimal magnetic footprint. The cryostat is an ultra-long hold dewar with a nominal 180 day fill interval. It has exactly the same dimensions as our prior AC-250 magnet and because of the active shielding, the magnetic footprint is also identical. The new spectrometer was installed in the spring of 2006, following decommissioning of our old AC-250 system and renovation of S34A, where it is now housed. The AVII-400 is managed by Dr. Richard Fitch.
The spectrometer is also equipped with a BACS automatic sample changer accessory. The sample changer allows us to make maximum use of our instrument as it removes the need for the researcher or student to be present to place the sample in the magnet. Automation allows us to run the instrument 24/7 and enables more and longer experiments to be run during nights and weekends, when the instrument might otherwise be idle. This benefits both researchers who may have large numbers of samples or need long acquisition times. It also benefits our laboratory course students, who can acquire high-resolution spectra, including 13C and 2D experiments, which are often not run due to time constraints. A spectrometer interface, ICONNMR is served on the web to the campuses of ISU, St. Mary-of-the-Woods College, and Rose-Hulman Institute of Technology. This allows students and researchers at these institutions convenient access to the instrument. Instructions Acquisition at the spectrometer Using ICONNMR at the spectrometer Remote Sample submission using ICONWeb 1D NMR Processing with Topspin |
| |
 |
