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?
Single comment threadYou are looking at one branch of [Results] 52 weeks, 35kg, and integration was the hard part — 35 comments in the full submission. View in context.
6.2k
c/hplc·submitted 2 years ago by u/saskia_bakker

[Results] 52 weeks, 35kg, and integration was the hard part

Correctionbranch of 9 comments

I have had 21 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied by about 12 days on nominally the same lane, which matters more in summer than in February. The independent number came back 93.7% against a claimed…

Read the full submission and all 35 comments →

This branch

9 comments, started 2 years ago
u/baseline_drifteranalytical127 points·2 years ago

Three years on this site and the questions have not changed at all. Which is depressing or reassuring depending on the day.

replysharereportpermalink
u/ewan_zielinski105 points·2 years ago·edited

Yeah, the chromatogram profile matters more than the headline number.

replysharereportpermalink
u/mass_spec_maggieMOD53 points·2 years ago

Tracking number removed. It identifies both ends of a shipment.

replysharereportpermalink
u/marit_mensa95 points·2 years ago

Not convinced. The evidence does not support that reading.

replysharereportpermalink
u/coa_janitormod · c/coa43 points·2 years ago

axis labels included, always

replysharereportpermalink
u/clara_danquah35 points·2 years ago

Yeah, the chromatogram profile matters more than the headline number.

replysharereportpermalink
load more comments (3) →

← back to the whole thread

About c/hplc

The analytical deep end: RP-HPLC methods, gradient design, integration decisions, LC-MS confirmation, amino-acid analysis, water content, and why two labs can report 98.1% and 96.4% on the same vial and both be right. Post the chromatogram, not the summary line.

32kmembers
130submissions
Sep 2023created
submissions / month, last year
Sponsored

PeptideMeter Analytics

Independent testing plus vendor-level trend data. Community-funded, unaffiliated.

peptidemeter.com
More in c/hplc
c/hplc rules
  1. Chromatogram or it did not happen. Axis labels included.
  2. State the method: column, gradient, detection wavelength, injection volume.
  3. Area% is not mass%. Posts that conflate them get a correction flair, not a removal.
  4. Independent community. Nobody here sells anything, and anyone who tries is banned.
  5. Not medical advice. Describe what you did; never prescribe to a stranger.
  6. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  7. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  8. No contact handles, wallet addresses or tracking numbers — they identify people.
  9. Be recognisably decent. Disagree hard, insult nobody.
Full rules and how they are enforced →
Moderators
u/sig_figs_samu/hplc_hobbyistu/peak_area_peteu/mass_spec_maggie
Volunteers. Unpaid, unaffiliated, and reachable through modmail only.
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.

Full disclaimer →