PCB No. 77, 10µg/ml in Isooctane, 10ml

17?(H),21ß(H)-(22R)-Homohopane, 500µg/mL in Isooctane, 1mL

n-Pentyl acetate,1000 µg/mL,MeOH,1mL,

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