Concentration of Element includes: Matrix Content Volume Part Number 2% HNO3 1,000 µg/mL: Al 125 mL N9300184 2% HNO3 1,000 µg/mL:Ca 500 mL N9300108 2% HNO3 1,000 µg/mL: Mg 125 mL N9300179 2% HNO3 1,000 µg/mL: Fe 500 mL N9300126 2% HNO3 1,000 µg/mL: K 500 mL N9300141 2% HNO3 1,000 µg/mL: Na 500 mL N9300152 5% HNO3 5,000 µg/mL: Al, Ca, Mg 500 mL N9300226 2,000 µg/mL: Fe 5% HNO3/trace Tartaric Acid/trace HF 100 µg/mL: Cd, Ni, Zn 125 mL N9300227 60 µg/mL: Sb 50 µg/mL: Ba, Be, Co, Cr, Cu, Mn, V 20 µg/mL: Ag 10 µg/mL: As, Tl 5 µg/mL: Pb, Se