@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @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 semapv: . @prefix skos: . @prefix sssom: . @prefix void: . rdf:type skos:Concept ; dce:identifier "SDN:L22::TOOL0553" ; dc:date "2012-11-15 10:40:15.0" ; dc:identifier "SDN:L22::TOOL0553" ; pav:authoredOn "2012-11-15 10:40:15.0" ; pav:hasCurrentVersion ; pav:hasVersion , ; pav:version "3" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "3" ; skos:altLabel "DGT trace metal sampler" , "DGT trace metal sampler"@en ; skos:broader , ; skos:definition "A device designed to measure concentrations of dissolved metal species in water. It comprises a plastic casing that contains a Chelex resin impregnated in a hydrogel to accumulate metals. The resin layer is overlain by a diffusive layer of hydrogel and a filter. Ions diffuse through the filter and diffusive layer to reach the resin layer, thereby establishing a constant concentration gradient in the diffusive layer that allows the quantitative measurement of labile species in solution through laboratory analysis."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0553" ; skos:note "accepted"@en ; skos:prefLabel "DGT Research Diffusive Gradients in Thin Films trace metal sampler"@en ; skos:related .