Qualitative Determination of Organotin Species in Lard byGas Chromatography with Flame Photometric Detector andGas Chromatography／Mass Spectrometry / 分析化学

The organotin compounds in the contaminated lard samples were identified by gas chromatography-flame photometric detector and gas chromatography/mass spectrometry after propylation with Grignard reagent. Experimental results identified that all lard samples contain dimethyltin compound and most of these samples contain tri-and monomethyltin compounds.