Hi Jessica,
NMR helium Cryoprobes usually do not consume liquid helium, so there is
practically no boil-off to collect.
The annual cost of the upkeep is the amount required by the company to do
preventative maintenance. Currently, Bruker charges ~$16K or so.
Reza
*Reza Pouremad, Ph.D.*
Research Associate/NMR Facility Manager
240 Longwood Ave, C-270
Boston, MA 02115
*Reza_pouremad_at_hma.harvard.edu* <Reza_pouremad_at_hma.harvard.edu>
On Wed, Aug 30, 2023 at 10:55 PM Roberts, Jessica <jroberts_at_ohio.edu> wrote:
> Hi everyone,
>
>
>
> I am in the process of determining the most appropriate cryoprobe to
> purchase and one of the major driving forces is that of the
> operation/upkeep costs. I have a handful of biochemical users, as well as
> other advanced organic users, that would greatly benefit from a LHe
> cryoprobe and personally that is my preference. However, I was curious to
> see a few things from others that would help navigate this decision:
>
>
>
> 1. What are the yearly costs related to the upkeep of the LHe
> cryoprobe? If the cost can be broken down to compare between general upkeep
> and He costs, that would be super helpful!
> 2. I know that is going to depend on usage and operation temperatures,
> etc., but how much LHe do you feel your probe goes through yearly?
> 3. Is there a way to recover the He boil off from the probe? I am in
> the process of installing a He recovery hose to the NMR He stack already,
> not sure how that would work to recover from probe (I apologize if this is
> a silly question).
>
>
>
> Thanks!!!
>
> Jessica
>
>
>
> Dr. Jessica M. Roberts, Ph.D.
> Assistant Professor of Instruction
> NMR Facility Manager
> Department of Chemistry and Biochemistry
> Ohio University
> 245 Chemistry
> Athens, OH 45701
> 740.593.0038
> jroberts_at_ohio.edu
>
> --
>
>
>
>
>
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Received on Thu Aug 31 2023 - 10:32:36 MST