About: http://webisa.webdatacommons.org/341513280

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	In addition, the column is a silica or organic polymer-based C4, C8 or C18 column having a porosity of at least 125 ???, preferably 300 ???, and a particle size of at least 2 ??m, preferably 5 ??m.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es