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

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

Method 200.8/1638/1640 Internal Standard, 10µg/ml in 2%-HNO3, 4x25ml

Nitrate (NO3-) as N, 1000µg/mL in Water, 100ml