AssayIndex
Cross-section

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

24 recordsmedian 99.41 %spec 98.5 %
LaboratoryReportsGradientMS resolutionMedian purity %Published bias (pp)Bias-adjustedMethod suitability
Janoshik1030minHigh99.35+0.0099.35ADEQUATE
Medutest825minUnit99.31+0.0899.23ADEQUATE
PeptideMeter3 n=328minHigh99.93-0.0599.98ADEQUATE
Nordanalyt2 n=235minHigh99.53, 99.49+0.02—ADEQUATE
VendorInvestigate1 n=132minHigh98.48-0.11—ADEQUATE
Kestrel015minUnit—+0.24—ADEQUATE
98.198.598.899.199.499.7100.1JanoshikJanoshik: Q1 98.81, median 99.35, Q3 99.43, n=10n=10PeptideMeterPeptideMeter: Q1 99.71, median 99.93, Q3 99.93, n=3n=3MedutestMedutest: Q1 98.88, median 99.31, Q3 99.47, n=8n=8NordanalytNordanalyt: Q1 99.50, median 99.51, Q3 99.52, n=2n=2 Purity (% area)
Figure. Triptorelin 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.