@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/025ac446-56c1-4442-9ae4-b6b097dc16af> a dcat:Dataset ;
    dct:description "SRM 3264 St. John's Wort (Hypericum perforatum L.) Methanol Extract - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of chlorogenic acid, flavonoids, naphthodianthrones, and toxic elements in methanol extracts of Hypericum perforatum L. and similar materials. This data is public in the Certificate of Analysis for this material." ;
    dct:identifier "4765EE7CC5EFA396E0531A57068160031716" ;
    dct:issued "2025-09-23T15:28:48.911231"^^xsd:dateTime ;
    dct:language "{en}" ;
    dct:modified "2015-08-27T00:00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "SRM 3264 St. John's Wort (Hypericum perforatum L.) Methanol Extract" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Steven J. Choquette" ;
            vcard:hasEmail <mailto:srms@nist.gov> ] ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "certified-value",
        "dietary-supplements",
        "food-and-nutrition",
        "nutrition",
        "reference-value",
        "srm",
        "srm-3264",
        "st-johns-wort",
        "standard-reference-materials" ;
    dcat:theme <%7B%22Standards:Reference%20materials%22%7D> .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .