About: http://webisa.webdatacommons.org/370817294

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	Some time may be allowed for the particles to form, after which the particles are separated from the media, for example, by centrifugation, and washed in a hydrogen-bonding solvent such as ethanol.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr