Metformin-HCl, 100µg/ml in Acetonitrile, 5ml

CLP - Purgeable Organic Matrix Spiking Solution

1,2,3,4,5,6,7-Heptachloronaphthalene,,,,

(±)-trans-11-Nor-9-carboxy-delta-9-THC, 1000µg/ml in MeOH, 1ml