Atrazine, 100 µg/ml, Ethyl acetate, 5ml

2,3,5,6-Tetrachlorophenol, 100µg/ml in MeOH, 5ml

2',3,4-Trichlorobiphenyl (33)

Tri-n-butyltin-d27 chloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1257647-76-9