Fortification sol.,2000ug/ml in MeOH,1ml

2',3,4',5,5'-Pentachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

Anion Mix #4

2,2',3,3',5,6'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,