Cobalt Standard: Co @ 1000 µg/g in 75 cSt Hydrocarbon Oil, 50g Back Catalog number: VHG-OCO-1000-A-50 Availability: In the manufacturer's stock Price on request - + Recommended ICP-AM-15-1M-100 ICP Mix 15, 1000µg/mL in 2% HNO3, 100ml Price on request VHG-CLOIL-1P-100 Chlorine, 10000µg/g (1.00wt%) in Mineral Oil,100ml Price on request VHG-PSRN-100 Strontium Standard: Sr @ 1000 µg/mL in 5% HNO3, 100mL Price on request