Table 1. The Stable Carbon Isotope Labeled Compounds Spiked 

 into Each Sample. 



Amount 



Compound — (ilsJ — 



2,3,7, 8-tetrachlorodibenzo-p-dioxin-^^Ci2 19 • 1 



1,2,3,7, 8-pentachlorodibenzo-p-dioxin-l^Ci2 23.5 



l,2,3,6,7,8-hexachlorodibenzo-p-dioxin-l^Ci2 12.5 



1,2,3,4, 6,7,8-heptachlorodibenzo-p-dioxin-l^Ci2 44.4 



octachlorodibenzo-p-dioxin-l-^Ci2 25.5 



2, 3 ,7,8-tetrachlorodibenzofuran-l^Ci2 21.2 



1,2,3,7, 8-pentachlorodibenzof uran-l^Ci2 ^^ • ^ 



1,2,3,4 ,7,8-hexachlorodibenzofuran-l-^Ci2 ^^ • ° 



1,2,3,4,6,7, 8-heptachlorodibenzof uran-l^Ci2 37.5 



