Ni @ 1000 µg/mL in 5% HNO3, 100ml

S @ 10000 µg/g (1.00 wt%) in #2 Diesel Fuel, 100ml

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

Sulfur, 1000ug/ml, 100ml