the results in this channel skew because people test when they are suspicious. that is selection bias and it is real, anyway
#test-results 2025-03-05
- assay_not_purity — the results in this channel skew because people test when they are suspicious. that is selection bias and it is real, anyway 19:16
- tb500_tobias — post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later 19:39
- assay_not_purity — a result without a lot number and a purchase date is an anecdote with a pdf attached 19:40
- sharps_bin_sid — assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem 19:44
- area_percent — update from 23 months ago: retested the same supplier, result came back better, logged both a point or two between the certificate and an independent result is inside… 19:51
thats not great
nice result
test it again
post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later
a result without a lot number and a purchase date is an anecdote with a pdf attached
what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern
assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem
*that should say weekly
i have never regretted spending the money on a test. i have regretted not testing twice
update from 23 months ago: retested the same supplier, result came back better, logged both
a point or two between the certificate and an independent result is inside what two labs disagree by
does anyone log the negative results, the boring ones