Hi Stephen
make sure you are in the right spot. Multiply your exact TMS frequency in MHz
(6 decimals) with 0.04900 198 (source: doi:10.1351/pac200880010059)
That should get you very close to the Y89 frequency.
Clemens
On 8/30/2023 10:38 PM, Stephen M Spain wrote:
**EXTERNAL EMAIL**
Hi,
One of the PI's wants
to measure Y89 on our 500 MHz Varian VNMRS spectrometer. I found an ancient
10 mm low frequency probe that can do 15 to 50 MHz in one our cabinets that
I'd never used. I got the probe to tune to the 24 MHz needed for Y89 via
mtune but can't observe anything for either the 200 mM or 1 M yttrium nitrate
solutions.
Since I've never done
anything this low of a frequency before is there anything besides the quarter
wavelength cable that needs to be changed or adjusted on a Varian VNMRS? I saw
in the probe manual that a switch needed to be flipped on the pre-amp but I
assume that is for an early 1990's console.
The probe is probably
in need of service since it was here decades before I was, but any suggestions
would be greatly appreciated.
thanks,
Stephen
--
==========================
==========================
====================
Clemens Anklin Ph.D. Vice President
Bruker BioSpin NMR Applications & Training
15 Fortune Drive NEW Phone: 978-313-5NMR(5667)
Billerica MA 01821 twitter: _at_canklin
web: http://www.bruker.com
e-mail: clemens.anklin_at_bruker.com
==========================
==========================
====================
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#490): https://urldefense.com/v3/__https://ammrl.groups.=
io/g/main/message/490__;!!PvDODwlR4mBZyAb0!XpLcs8sjoVKNayfv_Q5PrR5w25s6bAsP=
H9kmBSYGS4D9Q0pyY2TZURCUni4lYVAWKgKiDUj3h7Fm2GNq7tCyVbCMKxWL$
Mute This Topic: https://urldefense.com/v3/__https://groups.io/mt/101067099=
/7559972__;!!PvDODwlR4mBZyAb0!XpLcs8sjoVKNayfv_Q5PrR5w25s6bAsPH9kmBSYGS4D9Q=
0pyY2TZURCUni4lYVAWKgKiDUj3h7Fm2GNq7tCyVYnv82pd$
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-
Received on Thu Aug 31 2023 - 03:58:41 MST