About: http://webisa.webdatacommons.org/34859472

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	Thus, contaminants, particularly with regard to the starting material, e.g. mPEG-OH, are found in only trace amounts.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr