As @ 1000 µg/mL in 5% HNO3, 100ml

Zinc, 1000ug/ml, 100ml

Mo, 1000 µg/mL in 5% HNO3, tr. HF, 100ml

Mercury (Hg), 1µg/ml in 2%-HNO3 / Water, 3 x 20ml