Merck ICP multi-element standard V 26 components; K @ 100mg/l ; Al, As, Na, Pb, Se, Te @ 20mg/l ; Ca, P @ 10mg/l ; Hg, Ni @ 5mg/l ; B, Ba, Cd, Cr, Cu, Fe, Li, Ti, Zn @ 2mg/l ; Be, Mg, Mn, Sr, Sc, Y @ 1mg/l, in 5% HCl, 100mL