About: http://webisa.webdatacommons.org/178142728

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 mass spectrometer is a device that separates atoms or molecular fragments of different mass and measures those masses with remarkable accuracy.
http://www.w3.org/ns/prov#wasQuotedFrom	britannica.com