This Standard contains the following;

Solution A:

Ag @ 5 µg/mL,

Al, Sb, As, Ba, Be, B, Cd, Ca, Cr, Co, Cu, Fe, Pb, Li, Mg, Mn, Mo, Ni, Se, Na, Sr, Thallium, Sn, V, Zn @ 20 µg/mL

P, K, Si @ 100 µg/mL in 2% HNO3 Tr HF;