Cation Multi-element standard (IC), ROTI®Star 6 cations, concentration in mg/l, (NH4+ 40mg/l, Ca2+ 40mg/l, K+ 20mg/l, Li+ 10mg/l, Mg2+ 20mg/l, Na+ 20mg/l) in 0,1 % nitric acid, Density (D) 1 g/cm³, Boiling point (bp) 100 °C