Verification II Standard 1

4,4'-DDT, 100mg

1,2,3,4,6-Pentachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Diphenanthro[9,10-b;9',10'-d]thiophene, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 202-72-2