Speciation analysis of organotin compounds in lard poisoning accident in Jiangxi Province, China

Samples including organotin contaminated lard, urine, blood, and main organ s of the poisoned bodies were collected in the incident which took place in Longnan and Dingnan counties, Jiangxi Province, China around the new year' s day of 1999. The organotin compounds in these samples were identified and determined by gas chromatography-flame photometric detector (GC-FPD), gas chromatography-mass spectroscopy (GC-MS) and inductively coupled plasma-mas s spectroscopy (ICP-MS). Experiments confirmed that tri- and dimethyltin ar e the main components that caused the poisoning accident. Monomethyltin, di octyltin and inorganic tin were also found in several samples.