Selenium (Se) Back Catalog number: 58134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended IN153 Dysprosium Oxide (Dy2O3) Price on request DF-IS-G40 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request 31053 EPA Method 552.1 - Haloacetic acid esters Price on request