Archemy Lab
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11/06/2026
🦴🧪🔬 Pilk Burgose ülikooli arheoloogia köögipoolele!
Sel nädalal oli meil võimalus külastada arheoloogiaüksust Burgose ülikooli juures – nende teadustööd ja laborit tutvustas meile Colin Ian Smith. Muljetavaldav on nende tugev kompetents LC-IRMS seadme kasutamises, mis võimaldab väga täpseid analüüse mineviku materjalide kohta.
Eriti põnev oli nende lähenemine proovidele: enne uurimist skaneeritakse luud ja hambad kolmemõõtmeliselt ja luuakse nende põhjal 3D-prinditud ja käsitsi viimistletud koopiad muuseumidele eksponeerimiseks, samas kui originaalid jäävad teadustööks.
Ühel fotol vaatleb Mari just üht sellist lõualuukoopiat, mis ootab veel värvimist. See tuletab meelde teadustöö paratamatuid valikuid: vahel on uurimise nimel vaja originaalne proov lahustada või tükeldada. Just seetõttu ongi loodud koopiad nii väärtuslikud – nad aitavad säilitada meie pärandit ka siis, kui teadus nõuab ohvreid.
📸 Tekst ja fotod Holar Sepp
29/05/2026
Last week, we had an enjoyable reunion with Alex from the BioArCh lab (University of York). He gave us thorough training on the GC‑IRMS for hydrogen isotope analysis, including a practical walkthrough of recent GC repairs they had conducted. And he showcased their new autosampler, which can autonomously mix and shake samples, change needles, and even cap the vials. We also explored their internally developed spreadsheet tools for data normalization and evaluation.
In return, I shared my experience with the elemental analyser, which I’ve used for 13 years in Tartu but is still relatively new to them. On the final day, during the demo, we encountered abnormal signals (very high nitrogen and argon, plus unstable vacuum). Despite multiple adjustments, the system wouldn’t stabilize.
I suspected an issue with the connection between the ConFlo device and the IRMS. Having repaired the ConFlo multiple times before, I’m quite familiar with it. Once we opened the unit, it quickly evolved into a hands-on joint troubleshooting and repair session. It was satisfying to identify the root cause and help get the system back on track. I hope my input proved valuable for their work.
Greetings to Alex and BioArCh lab staff from Tartu!
Text by Holar Sepp
📸 Lola Sõukand
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Ravila 14A
Tartu
50411