Cr @ 1000 µg/mL in 5% HCl, 100ml

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

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

Disodium methyl arsonate hexahydrate, 500mg