Cr @ 1000 µg/mL in 5% HCl, 100ml Back Catalog number: VHG-PCRH-100 Availability: In the manufacturer's stock Price on request - + Recommended 59929 Fluoride (F-), 1.0µg/mL in Water, 500ml Price on request VHG-CN-100 Cyanide (CN-)@1000mg/L in 0.1% NaOH, 100ml Price on request 57424 Chromium (Cr), 1µg/ml in 2%-HNO3 / Water, 100ml Price on request