EuropiumFluoroimmunoassayLuminescenceMetals, Rare EarthSamariumLuminescent AgentsTerbiumYtterbiumLanthanoid Series ElementsStreptavidinPhenanthrolinesStearatesAmmonium HydroxideFluorometryEbstein AnomalyOrganometallic CompoundsChelating AgentsCoordination ComplexesHeterocyclic Compounds, 1-RingThenoyltrifluoroacetone