Selenium (Se) Back Catalog number: 57234 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1396.10-100-AN Malathion, 100μg/mL in Acetonitrile, 1ml Price on request MFDEA 2-Perfluorodecyl (13C2)ethanoic acid (13C2-10:2 FTCA), 50µg/ml in Isopropanol, 1,2ml Price on request MMPCB-MXA Mass-Labelled Chlorinated Methoxybiphenyl Solution/Mixture, 1.2ml, toluene Price on request