2-Methyl-5-nitroaniline, 10.0 µg/ml, Acetonitrile

N-Ethyl-n-perfluorobutanesulfonamide (N-EtFBSA), 50μg/ml in Acetonitrile, 1ml

Mass-Labelled PCB Congener Solution/Mixture, 5µg/ml in Nonane, 1,2ml

Siloxanes - Mix 7, 10µg/ml in Acetone, 5ml