About: http://webisa.webdatacommons.org/4569188

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	By using techniques such as nuclear magnetic resonance, infrared spectroscopy and mass spectrometry, analytical chemists are able to deduce compositional, molecular weight and structural information about a sample.
http://www.w3.org/ns/prov#wasQuotedFrom	usip.edu