Selenium (Se) Back Catalog number: 57234 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L18000034AL Pesticide-Mix 34, 10µg/mL in Acetonitrile, 10ml Price on request 53034 Calibration Standard Mix 2 Price on request 3453.15-100-CY Metolachlor Price on request