Hi TJ,
Thinking long term, accumulated residues increase friction and interfere with
smooth action. Gentle cleaning with isopropanol removes leavings from broken
samples and greasy fingers. Those white tubes (jacks?) are fully removable
and it's easy to give them a quick scrub if things ever get sticky.
Kind regards,
Luke
Luke Fulton, PhD
CHEM BLDG R003
NMR Core Facility Director
Unit 3060
COR2E & Department of Chemistry
55 N Eagleville Road
University of Connecticut
Storrs, CT 06279
email: fko24003_at_uconn.edu
(alias): luke.fulton_at_uconn.edu
mobile: (603) 953-5275
Office: (860) 486-4069
________________________________
> From: main_at_ammrl.groups.io on behalf of Thusitha Jayasundera via groups.io
> Sent: Monday, December 1, 2025 9:32 AM
> To: main_at_ammrl.groups.io
> Subject: [AMMRL] Sample case error: sample not dropping all the way
Hello all--our Prodigy 500 MHz system has recently been having a sporadic
error because the completed sample doesn't drop all the way to the sample
case (please see attached figure).
The problem can occur in manual mode or when running Icon. A simple tap on
the white sample insert drops the sample down to the case, but a restart is
always required to return to normal operation. The problem initially occurred
several times while on manual mode (requiring a full restart of the system),
and just once since then while on Icon, which was resolved by a restart of
just the sample case.
For more context, we have had this sample case since May, and the problem
started ~3 weeks ago. In contrast, the issue has never occurred on our second o
500 MHz system which is identical to this one except for having a regular
helium cryo probe.
Has anyone encountered this problem, and perhaps found a remedy? Any advice
would be much appreciated, and as always, many thanks in advance!
TJ.
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Received on Mon Dec 01 2025 - 10:18:18 MST