<http://webisa.webdatacommons.org/220332764>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<researchgate.net> .
<http://webisa.webdatacommons.org/220332764>	<http://www.w3.org/ns/prov#value>	"However, the matrix effect for other analytes was still great mainly due to the absence of appro-priate internal standard." .
<http://webisa.webdatacommons.org/220332764>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/435605686>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/220332764> .