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c/hplc·submitted 1 year ago by u/clara_danquah

switched from 10mg to 7.5mg and the fatigue got better, not worse

Correctionbranch of 13 comments

method development. That is the whole post, but I will justify it. Everything else people worry about in c/reconstitution is downstream of it. Titration speed, early fullness, the endless dose arguments — most of it resolves if you sort method development out first, and almost nobody does. I say this having got it…

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13 comments, started 1 year ago
u/yara_bakken212 points·1 year ago

a round-robin on baseline integration would be genuinely useful

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u/hplc_hobbyistMOD111 points·1 year ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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u/niels_lindqvist87 points·1 year ago·edited

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

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

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u/clara_danquahOP0 points·1 year ago

Gradient goblin mode: changed the solvent composition 4 times, finally got good resolution on a LC-MS peak.

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u/ravi_bergstrom30 points·1 year ago·edited

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

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u/sofia_petrescu37 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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u/alcohol_aversion27 points·1 year ago

Disagree. What you are describing is consistent with LC-MS, not with what you concluded.

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[deleted]45 points·1 year ago

[deleted]

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u/micro_bump_mick12 points·1 year ago

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

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u/clara_danquahOP160 points·1 year ago

instrument quality is less important than analyst consistency

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u/clara_danquahOP115 points·1 year ago

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

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