Retention Time Verification Standard

1,2,3,4-Tetrachlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 30746-58-8

2,2',3,3',4-Pentachlorobiphenyl

Methyl ursolate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 32208-45-0