Di-n-octyltin oxide,1000 µg/mL ,MeOH,1mL,

Iopanoic acid,10 µg/mL,water,1mL,

2,3,7,8-[37Cl4]-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

Tin (Sn)