Positions 76–95 of 95.
FGP vs SWB on the same compound, same month — both cleared 99.0%. I will put the method line and the batch identifier up front because that is what makes this…
the below spec advice in here is 2 years out of date. I have gone back and forth on this for months. The numbers the title promised, since a headline without them is…
the purity advice in here is 2 years out of date. Making the case below, and I expect to lose some of it in the comments. Pulling the figures out of the title: 2 years.…
the batch advice in here is 3 years out of date. It is the sort of thing everyone half-believes and nobody writes down. The relevant figures are 3 years, and they come…
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standardsNumbers in the title, numbers in the post. 14th independent test on GGPeps — 98.3% on a claimed 97.5%, and the trend is the interesting part. To save the first four…
SGN vs ERP on the same compound, same month — both cleared 97.0%. I will put the method line and the batch identifier up front because that is what makes this…
the PeptideMeter advice in here is 2 years out of date. Making the case below, and I expect to lose some of it in the comments. To save the first four comments: 2…
Title says it — 5th independent test on HJ — 99.2% on a claimed 99.0%, and the trend is the interesting part — so here is the boring supporting detail that makes it…
Question in the title, detail here: help me understand below spec, I have read the wiki twice. The template is vendor, compound, batch, service, claim, result, and who…
does Medutest actually matter or is it forum lore at this point, and I want the answer with the reasoning attached rather than just the conclusion. Area percent and net…
The title is the whole question — how much of what we believe about purity actually comes from batch threads — but here is why I am asking. The template is vendor,…
Asking properly rather than in a comment on somebody else’s thread: why does nobody talk about test results. Tested three lots over a year rather than three vials from…
Thinking out loud about this: below spec — 22 things I got wrong before I got it right. Date of analysis anchors the result to a manufacturing period. A two-year-old…
Explainer, as requested in the last thread: test results are not what most of this community thinks it is. On inter-lab disagreement, which generates more heat here…
why does nobody talk about Medutest. If this has been answered properly somewhere, link me and I will delete. Date of analysis anchors the result to a manufacturing…
Send the vial, get the number. Third-party purity and identity testing, results published to you regardless of what they say.
Test a vialSponsoredEst. 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.netwe are measuring below spec at the wrong time and calling it noise — a position I have arrived at slowly and would like tested. On inter-lab disagreement, which…
Template first. Field Value Vendor SWB Product Semaglutide 10mg Batch SWB-2605 Service Medutest Claimed 98.5% Result 98.7% 0.2 over the claim, which is agreement rather…
the purity question that gets asked weekly, answered properly. Change my mind, genuinely — I have no stake in being right about this. How to build a series that means…
The title is the argument: three years of below spec threads, summarised so you do not have to read them. Here is the rest of it. If the report gives a mass spectrum as…
purity — 22 things I got wrong before I got it right. Making the case below, and I expect to lose some of it in the comments. Kept every report as a PDF with the batch…
A running record of independent test results people paid for themselves. Every post follows the same shape: vendor, product, batch, testing service, method, and the number. Good results and bad results are equally welcome and get equal scrutiny.
Certified reference materials for peptide identity and purity work.
sigmaaldrich.comSeveral compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.
Reference