1,2,3,5,7,8-Hexachloronaphthalene, 1.2ml x 50ug/ml, nonane

Di-p-tolylphenyl phosphate-d14 (p-tolyl-d7),100 µg/mL,isooctane,1mL,

2,3,3',4,4',5',6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Homovanillic acid-d5, 1000µg/ml in MeOH, 1ml