Tuesday, June 21, 2011

Now witness the firepower of this fully ARMED and OPERATIONAL NMR Spectrometer.

Now witness the firepower of this fully ARMED and OPERATIONAL NMR Spectrometer!

I wanted to thank everyone for their patience over the past few weeks while I tinkered with BigSur. This afternoon I put the BBO probe back into the instrument and recalibrated it. With this probe everyone should enjoy higher signal-to-noise on carbon-detected experiments like the 1D 13C, DEPT and APT (although I would be remiss in my duties if I didn't point out that Siena is more than 4x more sensitive than BigSur!)

The reason I had to perturb BigSur was a) replace the workstation; b) diagnose some unsettling problems with 1H sensitivity. The computer was swapped last month. Switching the probes help diagnose a problem with our receiver preamplifier that was introducing extra noise into 1H spectra. Although this noise was minor and I'm certain that no one noticed, we could see it in our standard tests and Sarah and I don't like it when our spectrometers misbehave!

As always let us know if you have any questions,

Justin