Terbumeton, 100 µg/ml, Toluene, 5ml

8?H),17?,18?(H),21ß(H)-15 (14-13)-abeo-14,17-dimethyl-26,28-dinorhopane,neat,neat,ca. 5 µg,

Omethoate-d6 (O,O-dimethyl-d6),100 µg/mL,acetonitrile,1mL,

Ethyl-t-butyl ether