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

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

Sulfur, 5000µg/g (0.500 wt%) in 75 cSt Mineral Oil, 100ml

PE ICV Std, 5pct HNO3/tr Tartic, 500ml