USP232/ICH Q3D Inhalation STD# 1 IA

Ag (7 ppm), As (2 ppm), Ba (300 ppm), Cd (2 ppm), Co (3 ppm), Cr (3 ppm), Cu (30 ppm), Hg (1 ppm), Li (25 ppm), Mo (10 ppm), Ni (5 ppm), Pb (5 ppm), Sb (20 ppm), Se (130 ppm), Sn (60ppm), Tl (8 ppm), V (1 ppm)

in 10% HNO3 / 0.1% HF

Elements intentiionally added - 10X concentrate