17 alpha(H),21 alpha(H)-30-Norhopane, 50µg/mL in Isooctane, 1ml

Aldrin, 100 µg/ml, Methanol, 1ml

Endrin, 1000µg/ml in Hexane, 1ml

L-Glutamic-2,3,3,4,4-d5 acid,1000 µg/mL,0.1 mol/L hydrochloric acid,1mL,