Si @ 10000 µg/mL in H2O, tr. F-, 100ml Back Catalog number: VHG-TSIW-100 Availability: In the manufacturer's stock Price on request - + Recommended VHG-PCUN-100 Cu @ 1000 µg/mL in 5% HNO3, 100ml Price on request VHG-V21-100-100 V21 Wear Metals Standard: 100µg/g in Hydrocarbon Oil, 100g Price on request 56232 Germanium (Ge), 100 µg/mL in 2%-HNO3 / Water, 4x25ml Price on request