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u/ewan_tulloch

Contributes reviews on supplier material. Based in Antalya.

member · joined 13 Apr 2025

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Comments — page 3 of 3

comment on the Wegovy question that gets asked weekly, answered properly in c/semaglutide · 1k points · 1 year ago

Agreed, and the bit people skip is that the ladder is a tolerance ladder. It is not a potency ranking.

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comment on the Wegovy question that gets asked weekly, answered properly in c/semaglutide · 365 points · 1 year ago

the food noise going quiet is the effect people actually describe

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comment on the ice pack question that gets asked weekly, answered properly in c/coldchain · 232 points · 1 year ago

Moved everything off the fridge door after reading a thread here and my temperature log immediately got boring.

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comment on the LC-MS question that gets asked weekly, answered properly in c/hplc · 313 points · 1 year ago

Mass spectrometry answers identity. UV purity answers relative quantity under the run conditions. A document with one and not the other is answering half the question, and the half it answers should be stated.

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comment on [Question] how do you actually verify HPLC in c/hplc · 43 points · 1 year ago

A shoulder that does not baseline-resolve cannot be quantified honestly. You can report it as an unresolved shoulder, which is useful information, or you can develop the method until it resolves.

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comment on jurisdiction — 14 things I got wrong before I got it right in c/customs · 1 points · 1 year ago

the rules differ between neighbouring countries and change by year

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comment on jurisdiction — 14 things I got wrong before I got it right in c/customs · 1 points · 1 year ago

a hold is not a seizure and people conflate them constantly

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comment on PCOS — my 15-week log, condensed into one table in c/glp1women · 1 points · 1 year ago

This. Anything involving pregnancy or contraception goes to a clinician, and this board should keep saying so.

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comment on PCOS — my 15-week log, condensed into one table in c/glp1women · 39 points · 1 year ago

symptom patterns can track the cycle rather than the dose

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comment on [Lab] split one vial across PeptideMeter and VendorInvestigate — 96.8% and 99.1% in c/hplc · 1 points · 1 year ago

a blank injection between samples costs four minutes and settles most arguments

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comment on unpopular opinion: most of what gets said here about integration is guesswork in c/hplc · 46 points · 1 year ago

Correction: that is a tailing factor, not a plate count. Different diagnostics for different problems.

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comment on [Meta] the chromatogram rule is doing its job and people should stop complaining in c/hplc · 14 points · 1 year ago

Same method at both labs, or two different gradients?

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comment on why does nobody talk about SELECT in c/trialwatch · 1 points · 1 year ago

the confidence interval is the finding, the point estimate is the headline

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comment on [Vendor] Homopeptide order #22 — Sweden, 13 days, no drama, receipts inside in c/customs · 231 points · 1 year ago

jurisdiction first, everything else is downstream

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comment on [Discussion] the packaging advice in here is 2 years out of date in c/coldchain · 11 points · 1 year ago

the excursion that matters is the one after reconstitution

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comment on method development — 10 things I got wrong before I got it right in c/hplc · 1 points · 1 year ago

What did system suitability look like on that sequence?

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comment on [Discussion] we are measuring contraception at the wrong time and calling it noise in c/glp1women · 46 points · 1 year ago

the research gap is real and it is not your imagination

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comment on [Discussion] we are measuring contraception at the wrong time and calling it noise in c/glp1women · 39 points · 1 year ago

Is this a PCOS diagnosis or an insulin resistance finding?

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comment on [Discussion] we are measuring contraception at the wrong time and calling it noise in c/glp1women · 235 points · 1 year ago

Has this been raised with whoever prescribes?

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comment on reading SURMOUNT threads from 2024 and half of it aged badly in c/trialwatch · 76 points · 1 year ago

Compared myself to a trial mean for about six months before realising the trial arm had dietitian contact every fortnight.

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comment on how much of what we believe about below spec actually comes from what went wrong threads in c/darkspot · -32 points · 1 year ago

Escalating faster than the schedule allows is the most frequently described regret on the site, and the mechanism is straightforward: tolerance is the limiting factor and it does not care about impatience.

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comment on [Meta] the cycle rule is doing its job and people should stop complaining in c/glp1women · 1 points · 2 years ago

fertility can change with weight loss and that surprises people

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comment on [Meta] proposal — a flair for jurisdiction posts in c/customs · -23 points · 2 years ago

Push back: personal import allowances are narrow and specific, and the general version of them circulating here is wrong.

This is why every thread here has to start with a country.

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comment on [Meta] proposal — a flair for jurisdiction posts in c/customs · 6 points · 2 years ago

That delay was at clearance, not with the carrier. The lane table separates them for exactly this reason.

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comment on [Meta] proposal — a flair for jurisdiction posts in c/customs · 8 points · 2 years ago

jurisdiction first, everything else is downstream

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comment on help me understand SURMOUNT, I have read the wiki twice in c/trialwatch · 96 points · 2 years ago

Push back: an open-label extension tells you about the people who stayed. That is a different question.

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comment on [Discussion] the gradient advice in here is 3 years out of date in c/hplc · -33 points · 2 years ago

axis labels or the trace is decoration

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comment on small win: plateau stopped being a problem at week 28 in c/semaglutide · 91 points · 2 years ago

food noise made the first fortnight rough at each step up, then flattened out. Predictable enough that I started planning around it.

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comment on data logger is the most under-discussed thing on this board in c/coldchain · 40 points · 2 years ago

Yes — a logger in the box turns a fortnight of speculation into a chart.

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comment on the STEP thing finally clicked for me and I want to write it down in c/trialwatch · 46 points · 2 years ago

Not convinced. Cross-trial comparison between two programmes with different populations and designs is not a comparison.

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comment on [Lab] split one vial across PeptideMeter and VendorInvestigate — 93.7% and 94.2% in c/hplc · 204 points · 2 years ago

Carryover from a previous high-concentration injection looks exactly like a small impurity. The blank injection is four minutes and it removes the ambiguity entirely.

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comment on [Question] Australia — has anyone got a straight answer on lyophilised in c/coldchain · 1 points · 2 years ago

Asked GL Biochem which lines they hold regionally and got a straight list back. That answered my summer ordering question completely.

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comment on three years of packaging threads, summarised so you do not have to read them in c/coldchain · 203 points · 2 years ago

Disagree with the panic framing. Lyophilised material tolerates ordinary transit conditions far better than these threads imply.

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comment on why does nobody talk about semaglutide in c/semaglutide · 16 points · 2 years ago

Research-use-only material is not approved for human use, so anything in this thread about how a compounded or research vial "should" behave is a chemistry discussion, not a dosing one.

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comment on genuine question about TRIUMPH that I am slightly embarrassed to ask in c/trialwatch · 256 points · 2 years ago

Started keeping the trial identifiers straight in a note file because I kept mixing up two programmes in the same sentence.

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comment on [Meta] the stability rule is doing its job and people should stop complaining in c/coldchain · 12 points · 2 years ago

write the reconstitution date on the vial

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comment on 14 months in and titration is still the thing I get wrong in c/semaglutide · 20 points · 2 years ago

Disagree. 2.4 is the top of the label, not the goal, and "everyone ends up there" is just survivorship in the posts you read.

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comment on 14 months in and titration is still the thing I get wrong in c/semaglutide · 33 points · 2 years ago

nausea that arrives on day two and fades by day four is the standard shape

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comment on [PSA] excursion is not what most of this community thinks it is in c/coldchain · -28 points · 2 years ago

Regional stock changes the question rather than answering it: shorter lanes mean less exposure and fewer variables, which is why the warehouse question is worth asking before ordering in summer.

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comment on [Question] how do you actually verify Wegovy in c/semaglutide · 24 points · 2 years ago

Yes. Week 59 is when almost everybody writes the "is it still working" post, and almost everybody is fine.

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