if you are testing to settle an argument you will not settle it with n of 1
#test-results 2024-10-06
Sunday14 messages2 participantstimes are UTC
Highlights from this day
- tenpence — my sheet has 9 lots from GL Biochem with a spread under a point, which is tight 16:06
- cagri_curious — weigh the vial before you reconstitute. it costs nothing and catches the common failure 16:12
- tenpence — assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem 17:05
my sheet has 9 lots from GL Biochem with a spread under a point, which is tight
for the archive log the boring results too. a channel that only records failures produces a false picture
[edited]*that should say weekly
genuine question if the vial has been through a bad transit you are testing the transit as much as the supplier
weigh the vial before you reconstitute. it costs nothing and catches the common failure
lot bought purity assay/label
A-2418 2025-03 99.1% 9.6 / 10mg
A-2601 2025-08 98.7% 9.8 / 10mg
B-0114 2026-01 99.3% 9.4 / 10mg
B-0329 2026-04 98.9% 9.9 / 10mgone bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally
is a purity-only test worth the money if underfill is the common failure
i had a result i am fairly sure was a handling error on my side and i logged it as such
i test roughly every tenth vial. it is a sampling strategy, not paranoia, ill dig out the number
follow up do you test every order or sample it
whats the lot
assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem
whats the underfill rate people are actually seeing