About: http://webisa.webdatacommons.org/283742720

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	The columns may each be filled (packed) with different materials, e.g., silica gel, octadecysilyl silica gel, a combination of both or other materials depending on the sample to be analyzed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com