Janoshik Analytical
The single largest contributor to the index and the de facto reference against which the other five labs are calibrated here.
Ostrava, Czechiaest. 201830 min gradienthigh-res MS
reports3,159
repeatability0.18
turnaround3–6
Contributing laboratories
6 laboratories produced every measurement on this site. They do not agree with each other exactly, and the size of the disagreement is measured from matched lots rather than assumed. A purity figure is only meaningful alongside the method that produced it, so every record names its laboratory and every laboratory names its method.
| Laboratory | Location | Reports | Share of index | Gradient | MS resolution | Repeatability pp | Offset vs ref pp | Paired lots | Turnaround |
|---|---|---|---|---|---|---|---|---|---|
| Janoshik Analytical | Ostrava, Czechia | 3,159 | 47.0% | 30min | High resolution | 0.18 | reference | — | 3–6 business days |
| PeptideMeter | Tallinn, Estonia | 1,107 | 16.5% | 28min | High resolution | 0.22 | -0.024 | 569 | 4–8 business days |
| Medutest | Ljubljana, Slovenia | 940 | 14.0% | 25min | Unit resolution | 0.26 | +0.065 | 517 | 2–5 business days |
| VendorInvestigate | Riga, Latvia | 601 | 8.9% | 32min | High resolution | 0.30 | -0.493 | 380 | 5–10 business days |
| Nordanalyt Laboratories | Uppsala, Sweden | 511 | 7.6% | 35min | High resolution | 0.16 | -0.005 | 357 | 10–18 business days |
| Kestrel Bioanalytical | Melbourne, Australia | 404 | 6.0% | 15min | Unit resolution | 0.34 | +0.382 | 296 | 2–4 business days |
PeptideMeter
Runs dual-wavelength detection as standard and reports named related substances rather than totals only.
Tallinn, Estoniaest. 202128 min gradienthigh-res MS
reports1,107
repeatability0.22
turnaround4–8
Medutest
Fast turnaround and the widest compound acceptance, at unit mass resolution rather than high resolution.
Ljubljana, Sloveniaest. 202025 min gradientunit-res MS
reports940
repeatability0.26
turnaround2–5
VendorInvestigate
The only contributor that routinely purchases material anonymously rather than accepting submitted samples.
Riga, Latviaest. 202232 min gradienthigh-res MS
reports601
repeatability0.30
turnaround5–10
Nordanalyt Laboratories
The slowest and most precise contributor. The only lab here offering ion-pair, SEC and ICP-MS as routine.
Uppsala, Swedenest. 201635 min gradienthigh-res MS
reports511
repeatability0.16
turnaround10–18
Kestrel Bioanalytical
Fast and inexpensive, on a 15-minute gradient that co-elutes mass-identical diastereomers. Results read high.
Melbourne, Australiaest. 202315 min gradientunit-res MS
reports404
repeatability0.34
turnaround2–4