post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later
#test-results 2024-08-03
Saturday15 messages3 participantstimes are UTC
Highlights from this day
- food_noise_off — genuine question one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally 15:34
- LC_MS_Lena — my sheet has 3 lots from CPC with a spread under a point, which is tight 15:36
- LC_MS_Lena — my read after three years of this: purity is mostly fine across the market and fill consistency is where suppliers differ the results in this channel skew because… 15:37
- LC_MS_Lena — a point or two between the certificate and an independent result is inside what two labs disagree by assay under label with good purity means you got less of the… 15:38
whats the lot
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do the results in this channel skew because people test when suspicious
what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern
the results in this channel skew because people test when they are suspicious. that is selection bias and it is real
genuine question one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally
my sheet has 3 lots from CPC with a spread under a point, which is tight
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my read after three years of this: purity is mostly fine across the market and fill consistency is where suppliers differ
the results in this channel skew because people test when they are suspicious. that is selection bias and it is real
a point or two between the certificate and an independent result is inside what two labs disagree by
assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem
selection bias
thats within range
if you are testing to settle an argument you will not settle it with n of 1
sample handling on your end absolutely affects it. draw cleanly, ship fast, do not let it sit warm
99.2 against a certificate of 99 is fine. the same supplier landing low four times in a row is a question
when did you buy it