Tridecafluoroheptanoic acid, 100mg

tau-Fluvalinate, 100 µg/ml, Acetonitrile, 5ml

4-n-Nonylphenol-2,3,5,6-d4, 100µg/ml in MeOH, 5ml

Sodium perfluoro-1-[1,2,3,4-13C4]octanesulfonate, 1.2ml x 50ug/ml, methanol