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c/hplc·submitted 6 months ago by u/hplc_hobbyist

[Question] Australia — has anyone got a straight answer on integration

Questionbranch of 7 comments

Genuinely asking, not being difficult. Everyone in c/glp1uk repeats that method development is important. I believe it, but I have never seen anyone show why, and when I search I get 15 threads of people agreeing with each other. Is there a paper? Is there a measurement? Or is this one of those things that is true…

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7 comments, started 6 months ago
u/hedda_ekstrom130 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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u/hplc_hobbyistOPruns their own column75 points·6 months ago

The related substances profile is way more interesting than the main peak %. A 98% with 12 peaks is different from a 98% that is one 38% impurity.

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u/endotoxin_elliemicro50 points·6 months ago

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

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u/rasmus_kimani27 points·6 months ago

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

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u/honest_syringe_pls36 points·6 months ago

axis labels included, always

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u/hplc_hobbyistMOD54 points·6 months ago

Retitled to remove editorialising. Put the evidence in the body.

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u/hplc_hobbyistOPruns their own column102 points·6 months ago

the detector wavelength matters more than people think

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