Lanthanoid Series ElementsLuminescent AgentsTerbiumEuropiumMetals, Rare EarthYtterbiumDysprosiumLanthanumSamariumNeodymiumPraseodymiumActinoid Series ElementsThuliumLuminescenceGadoliniumHeterocyclic Compounds, 1-RingCoordination ComplexesCeriumMetals, AlkaliFluoroimmunoassayMacrocyclic CompoundsChelating AgentsOrganometallic CompoundsLuminescent MeasurementsMagnetic Resonance Spectroscopy