Cr @ 1000 µg/mL in 5% HCl, 100ml

Complex Cyanide (CN-), 1000µg/ml in Tr. NaOH / Water, 100ml

Palladium Standard: Pd @ 1000 µg/mL in 5% HNO3, 100mL

Nickel, 1000ug/ml, 100ml