Selenium (Se) Back Catalog number: 57234 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-SS-A Mass-Labelled PCDD Sampling Spike Solution, 1.2ml x 1000ng/ml, nonane Price on request 677828 FMOC-AMPA, 10mg Price on request 3443.2-100-AN Methamidophos, 100μg/mL in Acetonitrile, 1ml Price on request