D6-Chlorpyrifos-methyl, 10mg

EPA Method 533 Isotope Dilution Standard PDS, in MeOH, 1,2ml

PCB Co-Eluter Isomer Mix

1,2,3,4,6,8,9-Heptachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane