@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "Isotopic enrichment (1000*((30Si/28Si) sample / (30Si/28Si) standard)-1) of silicon-30 in biogenic silica (SiO2) in a body of salt or fresh water in particles larger than 0.4 microns by filtration." ; sdo:inDefinedTermSet ; sdo:name "Enrichment of 30Si in biogenic silica in the water body [particulate >0.4um phase] by filtration and inductively-coupled plasma mass spectrometry"@en ; sdo:termCode "EN30SBSI" .