Ketoprofen, 100 µg/ml, Methanol, 1ml

2,3,6,7-Tetrachloro-9H-carbazole, 1.2ml x 50ug/ml, nonane

Mass-Labelled PCB Sampling Standard, 1.2ml, nonane

Coumatetralyl, 100 µg/ml, Acetonitrile, 1ml