Initial Check Verif. Standard 4, in 4%HNO3, 100ml

2,3,3',4,4',5,5'-Heptabromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 88700-06-5

1-(Trifluoroacetyl)imidazole, neat, Solvent-neat, Unit 1mL, # of units-5, Cas.no. 1546-79-8

2,2',3,3',4,4',5,5'-Octabromobiphenyl, 1.2ml x 50ug/ml, nonane