one more information
dpwr=43 for 1s was used.
Jennifer
On Wed, Sep 24, 2014 at 12:19 PM, Xiaoyan Sun <xsun9_at_ncsu.edu> wrote:
> Dear All,
>
> Hope you all had a great summer!
>
> I would like to ask your help to figure out what happened in my
> Maganet/probe. I have never seen that a probe could be burned like this
> way. First let me briefly describe the "crime scene".
>
> 1. A standard NMR tube was melted inside of the probe. The probe is Varian
> 400MHz AutoSW PFG. The tube does not broke, just melted.
> 2. A piece of broadband coil (inner coil) was fused within the glass of
> the NMR tube.
> 3. The shimming coil is intact.
> 4. The glass tube/connection of VT connect is intact.
> 5. Gradient is off.
> 6. HMBC experiment was ran. parameter such as: pw (11), tpwr (58),
> decoupling power (pwx:59 pwxleve:9.6) are all within the limit.
> 7. All components in console are all working.
> 8. Sample was ZnC-PEG, solvent was CDCl3.
>
> If you had the same experience, please let me know what your finding was.
>
> Also, any clue, input, or suggestions is appreciated. I am now clueless
> what could possible generate so much heat inside of the probe. If you
> interested to see the pictures of the tube and probe, please click the link
> below, you will be surprised.
>
> Probe Burned
> <https://docs.google.com/a/ncsu.edu/folderview?id=0B1pwZEOp3M2OZVFFeWpfSlZRRTA&usp=drive_web>
>
> Thank you so much!
> Jennifer
>
>
>
Received on Wed Sep 24 2014 - 06:58:24 MST