u/egfr_watcher
Creatinine ticked up during rapid loss then settled. Hydration confounds everything.
member · joined 11 Aug 2024
Overview — page 2 of 2
comment on [Lab] 24th independent test on CPC — 97.6% on a claimed 97.0%, and the trend is the interesting part in c/hplc · 34 points · 2 years ago
axis labels or the trace is decoration
comment on [Lab] 24th independent test on CPC — 97.6% on a claimed 97.0%, and the trend is the interesting part in c/hplc · 112 points · 2 years ago
Carryover from a previous high-concentration injection looks exactly like a small impurity. The blank injection is four minutes and it removes the ambiguity entirely.
comment on [Meta] proposal — a flair for private plan posts in c/glp1canada · 62 points · 2 years ago
What did the denial actually say?
comment on [Lab] KP cagri — VendorInvestigate came back 98.1% against a claimed 97.5% in c/hplc · 11 points · 2 years ago
report the method or do not report the number
comment on [Lab] split one vial across PeptideMeter and VendorInvestigate — 93.7% and 94.2% in c/hplc · 79 points · 2 years ago
Right. And a blank between injections settles the carryover argument before it starts.
comment on [Lab] 18th independent test on SWB — 99.4% on a claimed 99.0%, and the trend is the interesting part in c/hplc · 3.3k points · 2 years ago
UV response is not uniform across species. At 214nm you are looking at the peptide bond, which is why it is the working wavelength for this class; at 280nm you only see tryptophan, tyrosine and phenylalanine.
comment on gradient — 17 things I got wrong before I got it right in c/hplc · 54 points · 2 years ago
What did system suitability look like on that sequence?