AssayIndex
Cross-section

Pinealon 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 Pinealon, with a class minimum gradient of 15 min, the method is a live explanation.

19 recordsmedian 99.24 %spec 99.0 %
LaboratoryReportsGradientMS resolutionMedian purity %Published bias (pp)Bias-adjustedMethod suitability
Janoshik7 n=730minHigh99.34+0.0099.34ADEQUATE
Medutest4 n=425minUnit99.13+0.0899.05ADEQUATE
PeptideMeter3 n=328minHigh99.77-0.0599.82ADEQUATE
VendorInvestigate3 n=332minHigh99.83-0.1199.94ADEQUATE
Nordanalyt2 n=235minHigh99.23, 99.12+0.02—ADEQUATE
Kestrel015minUnit—+0.24—ADEQUATE
98.498.799.099.299.599.8100.0JanoshikJanoshik: Q1 99.16, median 99.34, Q3 99.80, n=7n=7PeptideMeterPeptideMeter: Q1 99.31, median 99.77, Q3 99.85, n=3n=3MedutestMedutest: Q1 99.04, median 99.13, Q3 99.31, n=4n=4VendorInvestigateVendorInvestigate: Q1 99.18, median 99.83, Q3 99.88, n=3n=3NordanalytNordanalyt: Q1 99.15, median 99.18, Q3 99.20, n=2n=2 Purity (% area)
Figure. Pinealon 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.