Metazachlor-oxalamic acid (OA), 10mg

N-Butylbenzenesulfonamide, 250mg

1,3-Diethylbenzene

EPA 8041A Surrogate Standard PFB-derivatives S-4373 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol-PFB