4-Ethylphenol, 100 µg/ml, Acetonitrile, 1ml

Phenol-d6, 1000µg/ml in MeOH, 1ml

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

Chloroacetonitrile