2,4-D,1000 µg/mL,MeOH,1mL,

2,3,4,6,7,8-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Haloxyfop-methyl, 10.0 µg/ml, Acetonitrile, 10ml

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