assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem
#test-results 2026-06-12
Friday16 messages4 participantstimes are UTC
Highlights from this day
- LC_MS_Lena — assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem 07:38
- flint_fills — how much does sample handling on my end affect the number if the vial has been through a bad transit you are testing the transit as much as the supplier 08:23
- flint_fills — if the vial has been through a bad transit you are testing the transit as much as the supplier 08:26
- LC_MS_Lena — i have never regretted spending the money on a test. i have regretted not testing twice, n of 1 obviously underfill is more common than impurity. if you only test… 10:09
- brisbane_bac — does anyone log the negative results, the boring ones 13:00
post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later
is a purity-only test worth the money if underfill is the common failure
quantity testing is usually a separate line item and it is the one worth paying for
how much does sample handling on my end affect the number
if the vial has been through a bad transit you are testing the transit as much as the supplier
nice result
if the vial has been through a bad transit you are testing the transit as much as the supplier
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i have never regretted spending the money on a test. i have regretted not testing twice, n of 1 obviously
underfill is more common than impurity. if you only test purity you are testing the less likely failure
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unrelated but the widest spread in my data is about 2.6 percentage points across five lots from one supplier
the honest limits: hobby chain of custody is weak and any result here should be read with that in mind
one data point
is quantity testing available as a separate thing or bundled
does anyone log the negative results, the boring ones
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attach the pdf
thats not great
weigh it first