About: http://webisa.webdatacommons.org/346434158

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A wide variety of materials for use in ion-selective membranes have been used to sense ions of hydrogen, potassium, calcium, sodium, ammonium, fluoride, and other ions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com