| In the oxidation process of ferro sulphide compounds,the highly active products are polysulphides(Sn2-).the thesis gives a sensitive and simple method to determine the polysulphides and sulfur.Polysulphides are alkylated with pentafluorobenzyl bromide,by conversion into stable bis(pentafluorobenzyl)monosulphide,-disulphide,-trisulphide,then are detected by gas chromatography-mass spectrometry(GC-MS).The ferro sulphide compounds including pyrite,pyrrhotite and iron sulphide.The oxidation rate of iron sulphid... |