About: http://webisa.webdatacommons.org/254172643

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	To prevent contamination, the vacuum oven should be meticulously cleaned before the tray is placed therein, and subsequently purged with nitrogen or other dry gas.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com