Selenium (Se) Back Catalog number: 58034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFODA Perfluoro-n-octadecanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 673627 Kresoxim-methyl, 10 µg/ml, Ethyl acetate, 10ml Price on request 80602 EPA Method 8060 QC Check Solution Price on request