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u/hedda_ekstrom

Contributes reviews on supplier material. Based in Hyderabad.

member · joined 14 May 2025

16,469post karma
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78comments

Overview — page 2 of 5

comment on [Question] Australia — has anyone got a straight answer on integration in c/hplc · 130 points · 6 months ago

The VendorInvestigate result being close to my own HPLC is the signal, not the absolute number. Both are right.

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comment on 4 months in and dead space is still the thing I get wrong in c/reconstitution · 457 points · 6 months ago

Mechanistically the bit that matters is units. It explains most of the early profile and a decent chunk of the outcome.

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comment on does LC-MS actually matter or is it forum lore at this point in c/hplc · 6 points · 7 months ago

Strongly agree. Largest single impurity tells a different story than total purity.

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comment on [Meta] the dead space rule is doing its job and people should stop complaining in c/reconstitution · 31 points · 7 months ago

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

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comment on [Meta] the dead space rule is doing its job and people should stop complaining in c/reconstitution · 31 points · 7 months ago

20mg vial, 1mL water, concentration is 20/1 — write it on the vial afterwards

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comment on [Meta] the dead space rule is doing its job and people should stop complaining in c/reconstitution · 116 points · 7 months ago

swirl, do not shake, or you are courting oxidation

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comment on [Meta] the dead space rule is doing its job and people should stop complaining in c/reconstitution · 235 points · 7 months ago

Small correction: the trial was 18 weeks, not 7. Does not change your point but people will quote it.

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comment on [Question] New Zealand — has anyone got a straight answer on LC-MS in c/hplc · 18 points · 7 months ago

two labs, two different baselines, two different purity numbers, both honest

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comment on anyone else notice small molecule kicking in around week 59 in c/orforglipron · 6 points · 8 months ago

This is correct. ATTAIN data is phase 10.

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comment on small win: dose stretching stopped being a problem at week 85 in c/maintenancephase · 24 points · 8 months ago

Rodent data is rodent data. Dose scaling is not linear and the models tell you what to investigate, not what to expect.

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comment on is it normal to get nausea at week 19 in c/reconstitution · -26 points · 8 months ago

Cosigning. The concentration on the vial in marker is load-bearing.

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comment on switched from 10mg to 7.5mg and the sulphur burps got better, not worse in c/maintenancephase · 4 points · 8 months ago

Did you stretch the dose interval?

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comment on my hs-CRP moved and I cannot work out whether small molecule is why in c/orforglipron · 6 points · 9 months ago

Every time this gets posted it hits the front page and every time someone has to re-explain it.

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comment on why does nobody talk about dead space in c/reconstitution · 126 points · 10 months ago

u-100 syringe, not u-40, or your math is off by factor of 15

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comment on anyone else notice regain kicking in around week 90 in c/maintenancephase · 162 points · 12 months ago

state how long you have been at maintenance, week 20 is not maintenance

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comment on week 16 check-in — 37kg down, early fullness manageable, one thing confusing me in c/hplc · 1 points · 1 year ago

related substances are where the story lives, not the main peak

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comment on concentration — 20 things I got wrong before I got it right in c/reconstitution · 649 points · 1 year ago

Sceptical. If this were true we would see it reflected in the data and we do not.

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