513-CS0.25 (ng/ml)

< b>NATIVE TCDD & TCDF

2,3,7,8-Tetrachlorodibenzo-p-dioxin (0.25)

E45 2,3,7,8-Tetrachlorodibenzofuran (0.25)

< b>LABELLED TCDD & TCDF

2,3,7,8-Tetrachloro[13C12]dibenzo-p-dioxin 100

2,3,7,8-Tetrachloro[13C12]dibenzofuran 100

< b>INTERNAL STANDARDS

1,2,3,4-Tetrachloro[13C12]dibenzo-p-dioxin 100

1,2,3,4-Tetrachloro[13C12]dibenzofuran 100

< b>CLEANUP STANDARDS

2,3,7,8-[37Cl4]-Tetrachlorodibenzo-p-dioxin 0.25

1,3,6,8-Tetrachloro[13C12]dibenzo-p-dioxin 100

1,3,6,8-Tetrachloro[13C12]dibenzofuran 100