WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml

Alternative Standard, 1.2ml, nonane

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

Ethylacetate, 1ml