<http://webisa.webdatacommons.org/prov/152875056>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/3641281> .
<http://webisa.webdatacommons.org/3641281>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/3641281>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/3641281>	<http://www.w3.org/ns/prov#value>	"Alternatively, a reducing thiol acid such as cysteine, mercaptoacetic acid, dithiothreitol, thiphenol, and the like may be added to the assay system." .