Sodium Dodecylbenzenesulfonate (soft type) (LAS 10

2,2',3,4'-Tetrachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 36559-22-5

Initial Check Verif. Standard 4, in 4%HNO3, 100ml

2,4-D methyl ester