The particles that have large affinity for ion exchanger will come down the column as well as buffers. Would not you state that "shone" is still much better. From contexts like "shine shoes" or "shine a flashlight" I'd say "shone" constantly. At the least undoubtedly In cases like this. https://anion-exchange-chromatogr33220.ltfblog.com/38010964/the-fact-about-anion-exchange-chromatography-that-no-one-is-suggesting