Bayan da aka distilled samfurin, alkyl mercury a cikin distilled ruwa aka samo ta hanyar derivative reagent (ethylation reagent ko alkylation reagent), samar da volatile alkyl mercury samfurin da aka kama da Tenax bututun bayan bushewa, da zafi detached sassa raba ta hanyar gas chromatography, sa'an nan high zafi cracked zuwa tururi mercury, gano da sanyi atomic fluorescence detector.