Hello Dan
We procured two Magritek 80 MHz instruments this year and they have been
chugging along great from February. To spare the cohort from noise, if
you need more details, I will be glad to chat one-on-one.
Best Regards
Rajan
On Thu, Aug 3, 2023 at 4:44 AM Robert Lewis via groups.io <r.a.lewis hull.ac.uk_at_groups.io> wrote:
> Dear Dan
>
> This is not really a recommendation, but some thoughts on our experience.
>
> We bought an Oxford Pulsar at the start of the benchtop boom, and later it
> was upgraded. It has been very reliable and the students learn more of how
> an NMR experiment works than the researchers who mostly run the JEOL
> experiments in the "Walkup" mode.
>
> The Pulsar is heavy (but an early model) and don’t site it in a synthetic
> chemistry lab. The fan continually sucks in whatever is floating around the
> lab 24/7. Shimming takes less time if the temperature is constant (air
> con) and if you have labs running almost every day, you want the NMR up
> and running quickly, while you are busy getting students started in the
> synthetic experiments.
>
> I would go for the highest field available. Some molecules are OK at
> 60 MHz, but others, which show lovely doublets and triplets at 400, are
> useless at 60 MHz. The students don't get much out of these and are
> uninpressed and you don't want to change experiments to get a "nicer" NMR.
>
>
> Rob
>
> *Dr Rob Lewis | Team leader, Analytical Services | Faculty of Science and Engineering*
> University of Hull
> Hull, HU6 7RX, UK
>
> http://www.hull.ac.uk
> R.A.Lewis_at_hull.ac.uk | 01482 466649
>
--
____________________________________
Rajan K Paranji, Ph.D.NMR Facility Manager
*Department of Chemistry**Room 65, Bagley Hall*
University of WashingtonSeattle, WA 98195
phone : 206 685 2581 fax: 206 685 8665email: rajanp_at_uw.edu
____________________________________________________________________
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