About: http://webisa.webdatacommons.org/115902139

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	It could be that the 'cross reactant' is needed at a much higher concentration to produce vaules significant in your test or the cross reactant is not normally present in samples that would be analyzed.
http://www.w3.org/ns/prov#wasQuotedFrom	protocol-online.org