Dear Silas,
I did not work.with the BCU1 but with the predecessor bcu5 and now with the
bcu2. Both were able to get down to about 20K below the given lowest temp.
That means you should be able to get down to 253K maximum. That being said,
it is hard to achieve, you need the heavy spinners and ideally young tubes,
as you have to increase the flow rate up to 1600l/h!
Best, Andr
-- Dr. André DallmannLeiter der NMR-Abteilung
Email: andre.dallmann_at_chemie.hu-berlin.de
Raum: 0'103
Telefon: 82952
Handy: 01797657855
ORCID-ID: https://orcid.org/0000-0002-0141-2635
Webseite
https://www.chemie.hu-berlin.de/en/forschung-en/nmr-spectroscopy/nmr-spectroscopy?set_language=en
Adresse:
Humboldt Universität zu Berlin
Institut für Chemie
AG NMR
Brook-Taylor-Str. 2
12489 Berlin
Deutschland
-------- Ursprüngliche Nachricht --------
Von: "Brown, Silas via groups.io"
Datum: 20.06.25 21:28 (GMT+01:00)
An: main_at_ammrl.groups.io
Betreff: [AMMRL] Bruker BCU1 for 500 MHz Ultra shield NMR sample temp range.
Hello Everyone,
I have a question about the sample temperature range people have been able to
achieve/ use the BCU 1 chiller for.
I have a user who has not used the chiller in a few years and last worked with
the chiller prior to my time here. The user was wanting to know what were the
low end of sample temperature ranges we could realistically achieve with the
BCU 1 chiller? I know according to the manual the recommended range is from 0 C
to Room Temp. When I tried to see if I could get the temp lower it seemed to
only be able to get a sample down to around -3 C. But the user insists that
it was the BCU 1 to achieve the lower temp. I am just looking for real-world
experience from users.
We do have a Cryo Diffusion CDL 27 that is not currently in use but had been
used in the past, but the user is insistent that the BCU 1 was the chiller used
for the temps he wants to achieve?
I am just wanting to get peoples experiences on what they could achieve with the BCU1.
Sincerely,
Silas
--
Silas Brown (He/Him), Instrumentation Specialist
Department of Chemistry
Williams College
150B Morley Science
Laboratories
Williamstown, Ma.
01267
E: seb14_at_Williams.edu
| P: 413.597.3544
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Received on Fri Jun 20 2025 - 13:57:12 MST