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[Suspicious] the same signature image on COAs from three vendors
the same signature image on COAs from three vendors. Multiple orders, one buyer, which makes this a series and not a survey. Ask what the stability statement was…
related substances
Every GLP Research Hub submission tagged to related substances, ranked by score. Discussed in 1 community.
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[PSA] area percent is not what most of this community thinks it is
area percent is not what most of this community thinks it is. If you already knew this, the post is not for you and you can scroll on. Net peptide content is the…
-21
[Question] is 98.3% actually fine or am I being sold a rounding error
Short version of the title, which is already short: is 98.3% actually fine or am I being sold a rounding error. Longer version underneath. Since the title puts numbers…
-26
[Lab] QSC BPC — Janoshik came back 98.7% against a claimed 98.5%
Posting this because the title is the whole finding — QSC BPC — Janoshik came back 98.7% against a claimed 98.5% — and a number without its method is a rumour. 98.7%…
Sigma-Aldrich — certified reference materials
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standards-89
[Discussion] the COA advice in here is 2 years out of date
the COA advice in here is 2 years out of date, and I am aware this is a minority view on this board. 2 years — those are the numbers, and they are the ones I am willing…