Detection limits of rare earths by inductively coupled plasma atomic emission spectroscopy

Using a medium power (1.25–1.50 kW) ICP as an excitation source and a glass concentric nebulizer, aqueous solutions of rare earth elements are measured. Limits of detection for all the rare earth elements in both pure solution and in a mixture of all the rare earth elements combined are measured except for Pm. Analytical lines and ICP characteristics for such measurements are given.