does Janoshik actually matter or is it forum lore at this point. If this has been answered properly somewhere, link me and I will delete. Date of analysis anchors the…
c/labresults — hot, page 3
Positions 51–75 of 95.
Asking properly rather than in a comment on somebody else’s thread: how much of what we believe about PeptideMeter actually comes from batch threads. Chain of custody…
18th independent test on GL Biochem — 99.5% on a claimed 99.0%, and the trend is the interesting part, and before anyone asks: same batch throughout, single submission,…
Short version of the title, which is already short: WXT BPC — PeptideMeter came back 97.2% against a claimed 97.0%. Longer version underneath. Numbers, in the order…
Janoshik Analytical — independent HPLC & mass spec
Send the vial, get the number. Third-party purity and identity testing, results published to you regardless of what they say.
Test a vialSponsoredGL Biochem (Shanghai) Ltd. — the synthesis house
Est. 1998. ISO 9001 and cGMP, 1,500+ staff, 200+ patents. There is a fair chance the vial you are about to send for testing started here. Batch-specific COA as standard.
glbiochem.netsomeone explain PeptideMeter to me like I have not read a paper in years. Searched first, found three threads that contradict each other, hence the post. Sent a vial in…
Slightly embarrassed to be asking this, but: Janoshik — what am I missing here. A series across separate lots estimates a process. Repeat tests on one lot estimate the…
how much of what we believe about purity actually comes from PeptideMeter threads — that is what I am asking, and I have already read the wiki twice. First result I…
Thinking out loud about this: PeptideMeter is the most under-discussed thing on this board. First result I ever posted here got asked for the batch number and the…
Asking properly rather than in a comment on somebody else’s thread: how do you actually verify test results. On inter-lab disagreement, which generates more heat here…
reading below spec threads from 2024 and half of it aged badly. Not a hot take, just something I have not seen said plainly here. CPC BPC, batch matched the paperwork,…
The claim in the title is exactly the claim I am making: TFC BPC — Janoshik came back 98.3% against a claimed 98.0%. Nothing implied beyond it. Since the title puts…
help me understand PeptideMeter, I have read the wiki twice — that is what I am asking, and I have already read the wiki twice. Date of analysis anchors the result to a…
Something I keep coming back to: we are measuring test results at the wrong time and calling it noise. Split one vial between Janoshik and VendorInvestigate. The two…
below spec is doing more work than we give it credit for. Change my mind, genuinely — I have no stake in being right about this. First result I ever posted here got…
Genuine question, and the title is the question: how much of what we believe about purity actually comes from below spec threads. A series across separate lots…
PeptideMeter — community peptide analytics
Vendor-level purity averages over time, built from independent results rather than vendor claims. Transparent methodology, open dataset.
Browse resultsThinking out loud about this: test results — 20 things I got wrong before I got it right. First result I ever posted here got asked for the batch number and the claim.…
the Janoshik rule is doing its job and people should stop complaining — posting the reasoning in public because a policy you cannot inspect is just a preference. Tested…
The title is the whole question — why does nobody talk about purity — but here is why I am asking. If the report gives a mass spectrum as well as UV purity, say so.…
the Medutest rule is doing its job and people should stop complaining. This affects how posts get sorted and removed, so it belongs in the open. Inter-lab variance on…
Asking properly rather than in a comment on somebody else’s thread: someone explain batch to me like I have not read a paper in years. Chain of custody is why…
the Janoshik thing finally clicked for me and I want to write it down, and I am aware this is a minority view on this board. Fourth lot from the same supplier in the…
The title is the argument: Janoshik — 19 things I got wrong before I got it right. Here is the rest of it. If the report gives a mass spectrum as well as UV purity, say…
WWB BPC — Medutest came back 99.4% against a claimed 98.5%. I will put the method line and the batch identifier up front because that is what makes this checkable. The…
Question in the title, detail here: do test results actually matter or is it forum lore at this point. Have now spent more on testing than on some of the orders. No…
Medutest — 8 things I got wrong before I got it right, and I am aware this is a minority view on this board. What a result posted here is actually worth, and how to…