Strontium Standard: Sr @ 1000 µg/mL in 5% HNO3, 100mL

Complex Cyanide (CN-), 1000µg/ml in Tr. NaOH / Water, 100ml

Sulfide (S), 1000µg/mL in Tr. NaOH / Water, 3 x 20ml

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