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u/sofia_petrescu

Contributes reviews on supplier material. Based in Beirut.

member · joined 15 Jun 2025

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Comments — page 2 of 3

comment on [Results] 67 weeks, 26kg, and gradient was the hard part in c/hplc · 1 points · 8 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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comment on 15 months in and purity is still the thing I get wrong in c/hplc · 728 points · 9 months ago

This is the correct method framing. Column and gradient are load-bearing fields.

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comment on genuine question about gradient that I am slightly embarrassed to ask in c/hplc · 227 points · 10 months ago

integration decision on a shoulder changes your number by half a point on its own

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comment on 21 months in and HPLC is still the thing I get wrong in c/hplc · 242 points · 11 months ago

integration decision on a shoulder changes your number by half a point on its own

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

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comment on [Discussion] can we stop arguing about basics until somebody posts a number in c/newbiequestions · 1 points · 11 months ago

no question too basic, read the wiki first, then ask anyway

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comment on does purity actually matter or is it forum lore at this point in c/hplc · 65 points · 11 months ago

This is the correct method framing. Column and gradient are load-bearing fields.

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comment on 3 months in and chromatogram is still the thing I get wrong in c/hplc · 1 points · 1 year ago

axis labels included, always

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comment on unpopular opinion: orforglipron is massively overrated in c/orforglipron · 46 points · 1 year ago

Not convinced. The evidence does not support that reading.

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comment on my A1c moved and I cannot work out whether first time is why in c/newbiequestions · 11 points · 1 year ago

Week 22 or week 21?

Disagree on that part. 98.7% and 98.9% on the same vial is normal.

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comment on [Vendor] WXT order #24 — Germany, 35 days, no drama, receipts inside in c/orforglipron · 5 points · 1 year ago

Small correction: the trial was 19 weeks, not 27. Does not change your point but people will quote it.

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

the reflux profile is speculative at this stage

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

Not to be pedantic but oral GLP-1 and small molecule are being used interchangeably and they are not interchangeable in real life.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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

the absorption problem is solved by non-peptide structure

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comment on genuine question about week one that I am slightly embarrassed to ask in c/newbiequestions · 11 points · 1 year ago

Not to be pedantic but beginner and normal are being used interchangeably and they are not interchangeable in real life.

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comment on [Discussion] secretagogue is doing more work than we give it credit for in c/researchpeptides · 14 points · 1 year ago

Yeah, identity is the first question.

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comment on switched from 10mg to 7.5mg and the fatigue got better, not worse in c/hplc · 37 points · 1 year ago

This is an urgent-care question wearing a forum question's clothes.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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comment on Spain: gradient, and what it actually costs here in c/hplc · 721 points · 1 year ago

co-elution is real and method development is usually not enough to resolve it

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comment on chromatogram: the version I wish someone had shown me in week 1 in c/hplc · 21 points · 1 year ago

This is the correct method framing. Column and gradient are load-bearing fields.

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comment on handling is the most under-discussed thing in c/progresspics in c/researchpeptides · 35 points · 1 year ago

Yeah, identity is the first question.

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comment on am I the only one who found gradient harder than the injections in c/hplc · 224 points · 1 year ago

co-elution is real and gradient is usually not enough to resolve it

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