About: http://webisa.webdatacommons.org/435801818

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 programmed change of properties of the solvent which causes the gradual dissolution of individual components of the mixture (gradient) may concern pH, ionic strength, content of organic solvent, temperature, and other variables.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es