Mercury - DSC calibration standard, 2,5g

1,2,3,8,9-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

2,4,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

1H-1,2,4-Triazole-3,5-13C2, 5mg