About: http://webisa.webdatacommons.org/175579204

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	Optical O2 sensors measure the fluorescence quenching by O2 of fluorophores excited by a pulsed LED. The fluorophores are captured in our zero-drift chemistries designed for use in water, gases, foods, slurries, solvents and other media.
http://www.w3.org/ns/prov#wasQuotedFrom	spectrecology.com