2-Isopropylthioxantone, certified, 0.1g

Perfluoro-3,7-dimethyloctanoic acid, 1.2ml x 50ug/ml, methanol

Hexachlorobutadiene, 2000µg/ml in MeOH, 1ml

EPA Method 1633 PFAS Mix, 10µg/mL in MeOH:Water, 1ml