10 ug/ml [Ce] Cerium, 10 ug/ml [Dy] Dysprosium, 10 ug/ml [Er] Erbium, 10 ug/ml [Eu] Europium, 10 ug/ml [Gd] Gadolinium, 10 ug/ml [Ho] Holmium, 10 ug/ml [La] Lanthanum, 10 ug/ml [Lu] Lutetium, 10 ug/ml [Nd] Neodymium, 10 ug/ml [Pr] Praseodymium, 10 ug/ml [Sm] Samarium, 10 ug/ml [Sc] Scandium, 10 ug/ml [Tb] Terbium, 10 ug/ml [Th] Thorium, 10 ug/ml [Tm] Thulium, 10 ug/ml [U] Uranium, 10 ug/ml [Yb] Ytterbium, 10 ug/ml [Y] Yttrium