@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::TOOL1322" ; dc:date "2019-02-25 11:48:12.0" ; dc:identifier "SDN:L22::TOOL1322" ; pav:authoredOn "2019-02-25 11:48:12.0" ; pav:hasCurrentVersion ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "1" ; skos:altLabel "ORION Ross pH" , "ORION Ross pH"@en ; skos:broader , ; skos:definition "A series of pH electrodes that have been in production for over 35 years that are capable of measuring pH in TRIS, protein and sulphide samples. Measurement is based on the degree of potential that develops across a sensing membrane surface when the sensing element comes into contact with a sample. An internal reference electrode provides a second, unvarying potential to quantitatively compare the changes of the sensing membrane potential. This series of electrodes use a Ross Reference System that is based on [I3-/I-] iodide/triiodide ion pair chemistry with platinum wire. The probes typically have 0.01 pH precision."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL1322" ; skos:note "accepted"@en ; skos:prefLabel "Thermo Fisher Scientific (Thermo Scientific) ORION Ross pH electrode series"@en ; skos:related , .