Picaridin, 100 µg/ml, Acetonitrile, 1ml

Trichlorfon, 10 µg/ml, Cyclohexane, 10ml

2,2',3,3',5,5',6-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

4-n-Nonylphenol