Nortriptyline-d3 hydrochloride (N-methyl-d3)

2,2',4,5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

3-Bromodiphenyl ether, 1.2ml x 50ug/ml, nonane

EPA 604, Surrogate Standard as PFB derivatives S-4375 1 Analyte, 200 µg/mL in methanol, 5mL or 1mg/mL in isopropanol, 1mL 2,4,6-Tribromophenol-PFB