AssayIndex
Cross-section

Pemvidutide by laboratory

The same compound measured by different laboratories on different gradients. Where the medians differ, the question is whether the material differed or the method did — and for Pemvidutide, with a class minimum gradient of 25 min, the method is a live explanation.

8 recordsmedian 98.25 %spec 96.0 %
LaboratoryReportsGradientMS resolutionMedian purity %Published bias (pp)Bias-adjustedMethod suitability
Janoshik2 n=230minHigh97.97, 98.81+0.00—ADEQUATE
PeptideMeter2 n=228minHigh97.90, 98.66-0.05—ADEQUATE
Medutest2 n=225minUnit98.10, 98.34+0.08—ADEQUATE
Kestrel2 n=215minUnit98.17, 99.66+0.24—BELOW CLASS MINIMUM
VendorInvestigate032minHigh—-0.11—ADEQUATE
Nordanalyt035minHigh—+0.02—ADEQUATE
97.898.198.498.899.199.599.8JanoshikJanoshik: Q1 98.18, median 98.39, Q3 98.60, n=2n=2PeptideMeterPeptideMeter: Q1 98.09, median 98.28, Q3 98.47, n=2n=2MedutestMedutest: Q1 98.16, median 98.22, Q3 98.28, n=2n=2KestrelKestrel: Q1 98.54, median 98.91, Q3 99.29, n=2n=2 Purity (% area)
Figure. Pemvidutide purity by contributing laboratory. Any offset between rows has two possible sources — a real difference in the material each laboratory happened to receive, and the laboratory's own bias — and this figure cannot separate them. The paired analysis that can is on inter-lab agreement.