This Standard contains the following;

Element, Concentration (µg/ml)

Solution A: in 4% HNO3

Beryllium (Be) @ 50 µg/mL, Chromium (Cr) @ 200 µg/mL, Copper (Cu) @ 250 µg/mL,

Cobalt (Co), Manganese (Mn), Nickel (Ni), Vandium (V), Zinc (Zn) @ 500 µg/mL, Iron (Fe) @ 1000 µg/mL,

Aluminium (Al), Barium (Ba) @ 2000 µg/mL, Calcium ( K), Magnesium (Mg), Sodium (Na) @ 5000 µg/mL,

Solution B: in 4% HNO3

Silver (Ag) @ 250 µg/mL