Si @ 10000 µg/mL in H2O, tr. F-, 100ml

Phosphate (PO4-3) as P, 1000µg/ml in Water, 100ml

As @ 1000 µg/mL in 5% HNO3, 100ml

Ni @ 1000 µg/mL in 5% HNO3, 100ml