Chromium (Cr) Back Catalog number: 57724 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-23SSS Surrogate Standard Stock Solution, 1.2ml, nonane Price on request M4PFHPA Perfluoro-n-[1,2,3,4-13C4]heptanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 0399.19-200-T 6-Methylbenz[a]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 316-14-3 Price on request