Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended A634300 Ampicillin, 1g Price on request 675137 Carfentrazone (free acid), 100 µg/ml, Acetonitril Price on request 0664.28-100-IO 4 alpha-Methyl-5 alpha(H),14 alpha(H),17 alpha(H)cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 474-41-9 Price on request