Ni @ 1000 µg/mL in 5% HNO3, 100ml

Germanium (Ge), 100 µg/mL in 2%-HNO3 / Water, 4x25ml

PE ICV Std, 5pct HNO3/tr Tartic, 500ml

4-Chlorophenol solution, 200mg AOX/l, 100ml