Copper (Cu), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57029 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 0891.13-500-IO 4-Methyldiphenylsulfide, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3699-01-2 Price on request 8CL-PFOS Sodium 8-chloroperfluoro-1-octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request EPA-PAH-LCS Deuterated PAH Solution/Mixture, 1.2ml, toluene Price on request