Methylphenols - Mix 13, 50μg/ml in Acetone, 10ml

2-Methoxy-2',3',5,5',6'-pentachlorobiphenyl, 100µg/ml in IO, 1ml

Perfluorooctane sulfonic acid, 100µg/ml in MeOH, 1ml

Isodrin, 100µg/ml in Cyclohexane, 5ml