2,4-D methyl ester

Dimethoate, 100 µg/ml, Acetonitrile, 5ml

Phthalic acid, bis-isononyl ester, cert., 250mg

Tm/Ts Mixture Tm – 0615,27 17alpha(H)-22,29,30-Trisnorhopane Ts – 2635,27 18alpha(H)-22,29,30-Trisnorneohopane With a spesific ratio between the two peaks based on a SIM spectra of ion m/z = 191