Naphthalene, 100 µg/ml, Cyclohexane, 1ml

Individual Calibration Solutions, 200ul, nonane

2,2',4,5,5'-Pentachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

Paraoxon-methyl, 100 µg/ml, Acetonitrile, 5ml