Selenium (Se) Back Catalog number: 59960 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96080 Mepiquat, 100μg/ml in Water, 1ml Price on request EPA-23IS Internal Standard Solution, 1.2ml, nonane Price on request 673414 Pirimicarb-desmethyl, 10.0 µg/ml, Acetonitrile, Price on request