{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Steven J. Choquette", "hasEmail": "mailto:srms@nist.gov"}, "description": "This Standard Reference Material (SRM) is intended for use as a primary calibration standard for the quantitative determination of lanthanum.  A unit of SRM 3127a consists of five 10 mL sealed borosilicate glass ampoules of an acidified aqueous solution prepared gravimetrically to contain a known mass fraction of lanthanum.  The solution contains nitric acid at a volume fraction of approximately 10 %, equivalent to an amount of substance concentration (molarity) of approximately 1.6 mol/L. This data is public in the Certificate of Analysis for this material.", "identifier": "4765EE7CC5D6A396E0531A57068160031691", "keyword": ["Advanced Materials", "cations", "lanthanum", "metals", "pure materials", "single element solutions", "spectrometry"], "landingPage": "https://www-s.nist.gov/srmors/view_detail.cfm?srm=3127a", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2016-09-14 00:00:00", "programCode": ["006:052"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Standards:Reference materials"], "title": "SRM 3127a Lanthanum (La) Standard Solution Lot No. 151030"}