1,2,3,5-Tetrachloro[13C6]benzene, 1.2ml x 100ug/ml, isooctane

3,3',5,5'-Tetrabromobisphenol S dimethyl ether,50 µg/mL ,toluene,1mL

Hexavalent Chromium (Cr 6+)

Gonyautoxin-1 and -4