Retention on TLC plates is measured in Rf (retention factor), whereas in column chromatography, it is usually expressed in CV (column volumes): R f = (distance traveled by desired compound) / (distance traveled by solvent) CV = 1 / R f
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Finance Â» Real Estate Investment Trusts. Apple Hospitality REIT, Inc., a subsidiary of The Apple REIT Cos., Inc., is a company headquartered in Richmond, VA, that functions as real estate investment trust. It was founded in 2007 by Glade M. Knight. Justin G. Knight has been the CEO since the inception date.