EPA Method 515.1 Internal Standard

2,4,4-Trichlorobiphenyl (BZ-28)

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

(+/-)-Citalopram-d4 hydrobromide (4-fluorophenyl-d4), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219803-58-3