624B Internal / Surrogate Standard

3,3',4-Tribromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147217-80-9

2,2',3,3',4,4',5,5'-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2-Nitroaminoethanol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 74386-82-6