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c/hplc·submitted 11 months ago by u/valeria_cardoso

does purity actually matter or is it forum lore at this point

Methodbranch of 8 comments

chromatogram. That is the whole post, but I will justify it. Everything else people worry about in c/dosinglogs is downstream of it. Titration speed, muscle cramps, the endless dose arguments — most of it resolves if you sort chromatogram out first, and almost nobody does. I say this having got it wrong for 10…

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8 comments, started 11 months ago
u/sig_figs_samMOD218 points·11 months ago

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

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u/lina_novak175 points·11 months ago

axis labels included, always

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u/valeria_cardosoOP138 points·11 months ago

A shoulder on the main peak that 14 analysts integrated 35 different ways. Same trace, 97.6 spread.

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u/quiet_reader_9977 points·11 months ago

Small correction: the trial was 6 weeks, not 39. Does not change your point but people will quote it.

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u/valeria_cardosoOP45 points·11 months ago

Ran the same vial on two columns, different purity, both right, different separation. Method matters more than equipment.

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u/cagrilintide_enthusiast15 points·11 months ago

Detection wavelength? LC-MS and that changes at different wavelengths.

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u/crosspost_bot_no53 points·11 months ago

axis labels included, always

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