Total Dissolved Solids Back Catalog number: 54225 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MPFOS Sodium perfluoro-1-[1,2,3,4-13C4]octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request 2639.27-5UG 17ß(H)-22,29,30-Trisnorhopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 51271-94-4 Price on request 9758.20-100-IO Iso-pentyl benzyl phthalate (3-Methylbutyl benzyl phthalate), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 72170-46-8 Price on request