Ferrous Iron (Fe) Back Catalog number: 50641 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0454.4-150-CYX5 GC-IRMS Standards ((C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15); C40 (?13C: -27.05)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. Price on request 9099.10-100-IO Citral, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5392-40-5 Price on request 673227 Carbofuran-3-hydroxy, 100 µg/ml, Acetonitrile, 5 Price on request