That is most likely a Torlon cap.
Should do the temperature
Cheers,
Jochem
Sent from mobil device, please apologize brevity.
> On Jan 18, 2017, at 18:02, Kenneth Knott <kknott_at_vt.edu> wrote:
>
> Hello everyone
>
> So we've begun teasing around a bit with melt NMR and have put in an older VTN MAS probe for sacrifice should things go terribly wrong.
>
> We purchased some Vespel caps (see dark brown caps in image below) to work at about 140C and I've been having trouble getting them to spin up. I was told by Bruker that the 'ancient' DB (Double Bearing) MAS probes have a different rotor that they no longer carry. I'm assuming they are referring to the Drive caps.
>
> So I found what might be an old 4mm Vespel cap (image below - yellow mustard looking cap) digging around in the drawyers and I'm lookign for confirmation. It spins up but I'm hesitant to take it up to temp without confirmation that it is indeed a Vespel cap.
>
> Anyone have experience with this older probe and high temp rotor drive caps?
>
> Thanks!
> --
> Ken Knott
> Department of Chemistry
> Analytical Services
> Virginia Tech
>
> (540)267-6502 (Cell)
> (540)231-0885 (Office)
> <DSC_0137.JPG>
> <DSC_0136.JPG>
Received on Wed Jan 18 2017 - 10:25:17 MST