Trying to settle this properly because the thread from last year went in circles. The claim: chromatogram matters. The counter-claim: it is measurement error. Both…
u/marit_mensa
Contributes reviews on supplier material. Based in Rennes.
member · joined 12 Mar 2025
Overview — page 2 of 2
comment on switched from 1.7mg to 1.0mg and the reflux got better, not worse in c/hplc · 41 points · 1 year ago
integration decision on a shoulder changes your number by half a point on its own
comment on tried HPLC for 5 weeks. here is what happened. in c/hplc · 185 points · 1 year ago
Strongly agree. Largest single impurity tells a different story than total purity.
comment on handling is the most under-discussed thing in c/progresspics in c/researchpeptides · 5 points · 1 year ago
Yeah, identity is the first question.
comment on stalled for 9 weeks at 2.5mg and I refuse to panic this time in c/researchpeptides · -20 points · 1 year ago
Three years on this site and the questions have not changed at all. Which is depressing or reassuring depending on the day.
comment on stalled for 8 weeks at 5mg and I refuse to panic this time in c/hplc · 16 points · 1 year ago
Strongly agree. Largest single impurity tells a different story than total purity.
comment on stalled for 8 weeks at 5mg and I refuse to panic this time in c/hplc · 18 points · 1 year ago
chromatogram or it did not happen
comment on stalled for 8 weeks at 5mg and I refuse to panic this time in c/hplc · 18 points · 1 year ago
Did they post the raw trace or just the summary?
comment on what would you tell week-1 you about gradient in c/hplc · 49 points · 1 year ago
Yeah, the chromatogram profile matters more than the headline number.
comment on [Vendor] WXT order #17 — the Netherlands, 9 days, no drama, receipts inside in c/glp1uk · 53 points · 2 years ago
Private pharmacy pricing in Canada: 12.5mg was pricing this month, 23% up from last month.
comment on what would you tell week-1 you about private prescription in c/glp1uk · 130 points · 2 years ago
private 10mg is NHS in Denmark this month
comment on [Meta] proposal — a flair for tier 3 posts in c/glp1uk · 71 points · 2 years ago
Yeah, the NHS waitlist is genuinely two years in most places.
comment on [Lab] 16th independent test on BCH, and the trend is the interesting part in c/hplc · 263 points · 2 years ago
The evidence standard in c/vendorvetting gets called too strict about once a month, and every time, the thread ends with the complainant agreeing.
comment on [Question] the UK — has anyone got a straight answer on UK in c/glp1uk · 4 points · 2 years ago
NHS tier 3 is MHRA, the waiting list is real
comment on method development vs HPLC — genuinely asking which matters more in c/hplc · 24 points · 2 years ago
Gradient goblin mode: changed the solvent composition 4 times, finally got good resolution on a method development peak.
comment on method development vs HPLC — genuinely asking which matters more in c/hplc · 104 points · 2 years ago
Gradient goblin mode: changed the solvent composition 6 times, finally got good resolution on a LC-MS peak.
comment on method development vs HPLC — genuinely asking which matters more in c/hplc · 96 points · 2 years ago
The PeptideMeter result being close to my own HPLC is the signal, not the absolute number. Both are right.
method development. That is the whole post, but I will justify it. Everything else people worry about in c/reconstitution is downstream of it. Titration speed, muscle…
comment on why does nobody talk about method development in c/hplc · 1 points · 2 years ago
integration decision on a shoulder changes your number by half a point on its own
comment on [Results] 52 weeks, 35kg, and integration was the hard part in c/hplc · 95 points · 2 years ago
Not convinced. The evidence does not support that reading.