For use with ICP-MS systems. Contains: 20,000 ppm Cl, 3000 ppm Ca, 2500 ppm Fe and Na, 2000 ppm C, 1000 ppm Al, Mg, P, K, S and 20 ppm Mo and Ti-in a 100 Ml Bottle, matrix of 5% HNO3 with trace amounts of HF