EPA Method 8021B Internal Standard Back Catalog number: 19394 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 672950 Clioquinol, 100mg Price on request 10367.19-100-ME Paroxetine-d6maleate Price on request 1530.13-K-IO Fluorene-d10, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81103-79-9 Price on request