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High purity Krypton gas ampoule, purity 99.99%
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 24,00
Iridium metal arc melted bead, 5 grams, 99,95% purity!
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 1 250,00
Terbium 3+  doped glass bead NEW!
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Terbium 3+ doped glass bead NEW!
Price:  29,90
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 29,90
Large Hydrogen/Helium spectrum discharge tube 250mm - NEW
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