Phosphamidon, 10 µg/ml, Cyclohexane, 10ml

Hexachloro-1,3-butadiene, 100µg/ml in Isooctane, 1ml

Oxytetracycline 13C22,15N2 dried down 2.5 µg/mL, 5 x 1ml

PAH Labelled Compound Solution, 1.2ml, isooctane