Volatile Mix #3

2,2',3,4,4',5,5',6-Octachloro-3'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

U-{13C17}-Griseofulvine

2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene