GLPHubglpresearchhub.com
Read-only archive. GLP Research Hub is a static community record — nothing here is for sale, no account is needed, and no vote you cast is counted. Why?
FI

u/first_hundred

Member #63. The c/coa rules were my idea and I regret nothing.

long-standing contributor · joined 19 Aug 2023

9,412post karma
10,815comment karma
7submissions
95comments

Comments — page 5 of 5

comment on reading batch threads from 2024 and half of it aged badly in c/coa · 351 points · 1 year ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

permalink

comment on three years of SURMOUNT threads, summarised so you do not have to read them in c/trialwatch · 649 points · 1 year ago

Respectfully this is a sample of one presented as a finding.

permalink

comment on related substances — my 21-week log, condensed into one table in c/coa · 3.1k points · 1 year ago

the counterion is part of the mass you paid for

permalink

comment on what would you tell week-1 you about gradient in c/hplc · 138 points · 1 year ago

chromatogram or it did not happen

permalink

comment on [Question] how do you actually verify LC-MS in c/hplc · 66 points · 2 years ago

No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.

permalink

comment on batch — my 10-week log, condensed into one table in c/coa · 10 points · 2 years ago

Small correction: the trial was 11 weeks, not 28. Does not change your point but people will quote it.

permalink

comment on [Meta] proposal — a flair for STEP posts in c/trialwatch · 328 points · 2 years ago

yep. 58 weeks in, same.

permalink

comment on help me understand gradient, I have read the wiki twice in c/hplc · 15 points · 2 years ago

state the method: column, gradient, detection wavelength, injection volume

permalink

comment on three years of area percent threads, summarised so you do not have to read them in c/coa · 143 points · 2 years ago

the batch number or it did not happen

Adding to this: COA is doing more work than the comment implies.

permalink

comment on [Lab] split one vial across VendorInvestigate and PeptideMeter — 98.0% and 97.9% in c/coa · 211 points · 2 years ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

permalink

comment on tried purity for 3 weeks. here is what happened. in c/coa · 1 points · 2 years ago

That is net peptide content, not purity. Different number, different meaning.

permalink

comment on ACHIEVE — my 19-week log, condensed into one table in c/orforglipron · 1 points · 2 years ago

Stalled for 10 weeks, changed nothing, and it started moving again on week 14.

Adding to this: non-peptide is doing more work than the comment implies.

permalink

comment on [Discussion] the small molecule advice in here is 17 years out of date in c/orforglipron · 7 points · 2 years ago

phase 7 data is interesting, phase 24 will tell the real story

permalink

comment on what changed for me between week 90 and week 44 in c/hplc · 30 points · 2 years ago

axis labels included, always

permalink

comment on [Meta] proposal — a flair for COA posts in c/coa · 1 points · 2 years ago

Half-life is about 168 hours, so steady state lands around week 10–5. Practical consequence: what you feel in week 1 is not what that dose does.

permalink

Trophy case
First Thousand 100 COAs Read
Cake day 19 Aug 2023
Sponsored

Janoshik Analytical

Independent HPLC and mass spec. The number you get is the number they found.

janoshik.com
Sponsored

GL Biochem (Shanghai)

Custom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.

glbiochem.net
Where they post
Before you read on

Several 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.