AssayIndex
Cross-section

Humanin (HNG) 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 Humanin (HNG), with a class minimum gradient of 15 min, the method is a live explanation.

35 recordsmedian 99.12 %spec 97.5 %
LaboratoryReportsGradientMS resolutionMedian purity %Published bias (pp)Bias-adjustedMethod suitability
Janoshik2030minHigh99.09+0.0099.09ADEQUATE
Nordanalyt4 n=435minHigh99.16+0.0299.14ADEQUATE
PeptideMeter3 n=328minHigh99.31-0.0599.36ADEQUATE
VendorInvestigate3 n=332minHigh98.63-0.1198.74ADEQUATE
Kestrel3 n=315minUnit99.17+0.2498.93ADEQUATE
Medutest2 n=225minUnit99.82, 98.94+0.08—ADEQUATE
98.298.598.899.199.499.799.9JanoshikJanoshik: Q1 98.69, median 99.09, Q3 99.30, n=20n=20PeptideMeterPeptideMeter: Q1 99.16, median 99.31, Q3 99.41, n=3n=3MedutestMedutest: Q1 99.16, median 99.38, Q3 99.60, n=2n=2VendorInvestigateVendorInvestigate: Q1 98.52, median 98.63, Q3 98.89, n=3n=3NordanalytNordanalyt: Q1 98.84, median 99.16, Q3 99.46, n=4n=4KestrelKestrel: Q1 98.88, median 99.17, Q3 99.38, n=3n=3 Purity (% area)
Figure. Humanin (HNG) 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.