About: http://webisa.webdatacommons.org/358349048

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	purification steps such as filtration, SPE clean-up and concentration,
http://www.w3.org/ns/prov#wasQuotedFrom	biomedsearch.com