UW CHEMISTRY NMR

The BBI probe’s VT dewar is faulty, which most probably contributed to an over temperature event.  Since we have to wait for the replacement part to arrive (might be a couple of weeks), the following probehead has been placed and optimized for regular use :

TXI – 1H {13C, 31P) – XYZ gradient

• This probe is designed for best 1H sensitivity, similar to the BBI probe that came out.
• In the default configuration you can run 13C NMR without any modifications.
• If you want to run 31P, you have to pull the RF cable connected to 13C and connect it to the 31P connector on the probe – similar to what you will do with the TXO – 19F  probe in DRX499.
• You can use Topshim as before.
• The low temperature rnage of this probe is limited – a nominal value of -40 C is available for now.   If you want to go lower than this, please contact me or Adrienne.
• The high temperature limit is +70 C, as before.

Please contact, if you have further questions.

NMR Facility Manager

9/28/2017