Laboratory Fortification Standard Back Catalog number: 59172 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11873.12-100-AN (±)-Fipronil,100 µg/mL,acetonitrile,1mL, Price on request 681338 Fluroxypyr pyridinol, 10mg Price on request 51163 Sulfur in Isooctane - 0.1 Wt% Price on request