Buffer, pH 1.68, reference standard

4,4'-Dichlorodiphenyl ether, 1.2ml x 50ug/ml, nonane

7,12-Dimethylbenz(a)anthracene

1,4-Dimethyl-5-propylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 204256-08-6