Mixed Calibration Std 1

Ag (50 ppm), Ba (100 ppm), B, Cu, Cd, Mn (200 ppm), Sb, Se (500 ppm), Ca (1000 ppm) wt./vol = roztok A

As (1000 ppm) wt./vol = roztok B

Multiprvkový standard. Matrice: HNO₃.