IU NMR Facility

The probe on the I400 got contaminated by some user(s) lately. The contaminates give rise to two proton peaks around 0ppm. If you have broken a sample or had your sample spilled into the probe on the I400, you should contact me (Frank) or Doug immediately. I need to figure out an appropriate solvent for cleanup.

I’m going to work on the probe cleanup tomorrow. For time being, you can still use the I400 for 13C, 19F, and 31P. You can also do 1H on the I400 if you don’t care the small extra peaks around 0ppm.

Some users had problems with sample ejection on the VXR400 in the past few days. This was caused by sticky chemical deposits formed inside the sample delivery barrel and the probe.

Please do your part to prevent this from happening. ALWAYS WIPE YOUR NMR TUBE (and the spinner if needed) with Kimwipes and ethanol before putting it into the magnet. Report problems to the NMR staff promptly.

This Thursday, August 9th, 10am – noon. There are a few spots left – reserve by emailing Doug!
Note: This session is now full.

I will be doing advanced NMR training the week of August 9th (next week)! These will be single 2 hour sessions focused on using the 2D and selective 1D NMR experiments in the IU VnmrJ menu. I will schedule sessions according to your preference so please email Doug. if you’re interested with a time preference. 10am to noon has worked well in the past.

As a result of analyzing 2011-2012 NMR use, we will be increasing NMR rates $1/hour across the board except for the Gem300 which will have the same rate as the 400s. The increase is due to increased cryogen costs and to be able to cover probe repair or replacement. We expect the rate increase to be effective starting September 2012.

The NMR webserver was down for a while this afternoon when ITG was doing network upgrade. It is back up now.

As some of you know, we plan to retire the Gem 300 in about a year. The cost to maintain it is high versus the very low use. We’re still considering backup to the I400 for 31P and 19F which is currently this instrument. Please plan accordingly and as always we welcome feedback on this issue!

All the spectrometers are up running after the power outage.

There was a problem with MAG-RES user signup during this weekend after a software update. This problem has been fixed.inflatable bouncers

The spectrometers in the Chemistry NMR lab will be shut down during June 20th 5:30pm – 21st 8:30am, due to a scheduled power outage. The NMR web server and other computers in this lab will also be shut down during this time period.