Re: [AMMRL] No Na23 Tune dip on 500 MHz BBFO probe (Neo500)

From: Thusitha Jayasundera via groups.io <thusitha.jayasundera=bc.edu_at_groups.io>
Date: Tue, 15 Jul 2025 17:13:41 -0400

Hi Ken--isn't there an "excluded region" defined for each probe? I recall
being unable to get vanadium to work in one of our 500 NEO systems....


Thusitha Jayasundera, Ph.D.
Director, Magnetic Resonance Center
Boston College
Merkert 105
2609 Beacon Street
Chestnut Hill MA 02467-3860

Tel: (617) 552-6984 (office)
Fax: (617) 552-2705 <617-552-2705>

Website:
https://www.bc.edu/content/bc-web/research/sites/vice-provost-for-research/about/research-facilities/nmr-center



On Tue, Jul 15, 2025 at 4:54 PM Kenneth Sharp-Knott via groups.io wrote:

> We are trying to tune Na23 for the first time on the Neo500 with a room
> temp BBFO probe. I tried ATMA which indicated that I should first try the
> optimization algorithm using ATMM. I'm seeing absolutely no sign of a dip.
>
> I've tried with no sample and with NaCl solution.
>
> I assume that Na23 should be readily available in a standard broadband
> probe?
>
> The Neo500 HPPR2 doesn't have any filters as far as I can tell.
>
>
>
> Ken Sharp-Knott
> Manager of Analytical Services and the NMR Facility
> Department of Chemistry
> Virginia Tech
>
> (540)267-6502 (Cell)
> (540)231-0885 (Office)
>
>
>


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Received on Tue Jul 15 2025 - 14:14:49 MST

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