@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 "Measurements made by tracer doped incubation in full natural sunlight followed by mass spectrometric analysis of particulates collected on a GF/F filter filtering water previously filtered through a 5um pore filter. Rates normalised by dividing total uptake by the incubation duration in hours." ; sdo:inDefinedTermSet ; sdo:name "Uptake rate (hourly) of ammonium {NH4+} per unit time per unit volume of the water body [particulate GF/F-5um phase] by tracer doping, on-deck incubation at full natural light level, cascade filtration and mass spectrometry on residue"@en ; sdo:termCode "SNAURSPM" .