i had a result i am fairly sure was a handling error on my side and i logged it as such
post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later
#test-results 2026-01-09
Friday33 messages9 participantstimes are UTC
Highlights from this day
- lipase_lore — i had a result i am fairly sure was a handling error on my side and i logged it as such post the lot, the purchase month, the lab, the number, and what you were… 18:05
- thyroid_thea — while im here assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem 18:43
- madrid_mg — i told WXT about a result they would not have liked and they did not argue. credit where it is due, take that with a pinch of salt 20:04
- VialBot — On this day 2 years ago this channel logged 23 messages. 21:16
- madrid_mg — is it worth testing if the vial has already been through a warm transit 21:18
*that should say weekly
whats the underfill rate people are actually seeing
sample handling on your end absolutely affects it. draw cleanly, ship fast, do not let it sit warm
coming back after 16 months with a follow up result, where do i put it
[redacted at member request] · archive policy
⚠️4
follow up posting my Janoshik result on lot B-0329, what do people make of it
a supplier disputing a result is rare here and it has never gone well for the supplier
while im here assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem
is quantity testing available as a separate thing or bundled
weigh it first
the widest spread in my data is about 2.6 percentage points across five lots from one supplier
does a bad result on one lot condemn the whole supplier
thats within range
attach the pdf
selection bias
if the vial has been through a bad transit you are testing the transit as much as the supplier
which lab
what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern
i told WXT about a result they would not have liked and they did not argue. credit where it is due, take that with a pinch of salt
peptidemeter-summary-c-4402.pdf
2 pages · 253 KB · not retained in the public archive
i test roughly every tenth vial. it is a sampling strategy, not paranoia
how do you post a result so it is actually useful to somebody in a year
right so the honest limits: hobby chain of custody is weak and any result here should be read with that in mind
quick one whats the worst result anyone has logged and what happened next
whats the lot
test it again
On this day 2 years ago this channel logged 23 messages.
is it worth testing if the vial has already been through a warm transit
✅13
nice result
thats a fill problem
underfill is more common than impurity. if you only test purity you are testing the less likely failure
one data point
when did you buy it
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 / 10mg