Assertion: stationary phase | /r/HasAspect | negative charge
Facets:
value: in the cation-exchange chromatography
type: LOCATION
Source sentences:
text: In the Cation-Exchange Chromatography the stationary phase has negative charge and the exchangeable ion is a cation, whereas, in the Anion-Exchange Chromatography the stationary phase has positive charge and the exchangeable ion is an anion.