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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	Each rod has two voltages applied, one of which is a fixed direct current and the second is an alternating current that cycles with a superimposed radio frequency (10 kHz is not uncommon).
http://www.w3.org/ns/prov#wasQuotedFrom	chromatographyonline.com