Aluminum Standard: Al @ 1000 µg/mL in 5% HNO3, 100mL Back Catalog number: VHG-PALN-100 Availability: In the manufacturer's stock Price on request - + Recommended 59930 Fluoride 0.1 µg/mL (F-) in Water, 500ml Price on request VHG-TSIW-100 Si @ 10000 µg/mL in H2O, tr. F-, 100ml Price on request VHG-SMIN-5000-100 Sulfur, 5000µg/g (0.500 wt%) in 75 cSt Mineral Oil, 100ml Price on request