Dicofol, 100 µg/ml, Ethyl acetate, 5ml

4-tert-Butylphenyl diphenyl phosphate, 1.2ml x 50ug/ml, toluene

Salicylic acid-d4 (3,4,5,6-d4)

2,2',3,3',4,5,5',6-Octabromodiphenyl ether, 1.2ml x 50ug/ml, toluene