Hexavalent Chromium (Cr 6+)

4,4'-Dichlorobenzophenone,100 µg/mL,MeOH,1mL,

2,2',5-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane

Picloram, 100 µg/ml, Acetonitrile, 5ml