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Beschreibung

This Standard Reference Material (SRM®) is intended for use as a primary calibration standard for the quantitative determination of europium. A unit of NIST-3117a consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically from high-purity europium (III) oxide to contain a known mass fraction of europium. The solution contains nitric acid at a volume fraction of approximately 10 %, which is equivalent to an amount-of-substance concentration (molarity) of approximately 1.6 mol/L. /// Sample value(s) - please ask for current certificate.