About: http://webisa.webdatacommons.org/100472570

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 carrier gas is preferably Ar gas, but He gas or other inert gases such as Kr, Ne, and N2 also can be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk