利用气相色谱－火焰光度（ＧＣ－ＦＰＤ）、气相色谱－质谱联用（ＧＣ－ＭＳ）和等离子体－质谱（ＩＣＰ－ＭＳ）等检测技术对１９９９年元旦期间发生在江西赣州龙南、定南两县猪油中毒事件中的污染油样，中毒病人的尿样、血样以及中毒死者内脏中的有机锡形态进行了综合研究，并得出了明确结论．认为三甲基锡和二甲基锡是造成这次罕见事件的主要中毒成分，同时还发现一甲基锡、二辛基锡、无机锡和其他重金属污染物的存在． The detection techniques such as gas chromatography-flame photometry (GC-FPD), gas chromatography-mass spectrometry (GC-MS) and plasma-mass spectrometry (ICP-MS) County lard poisoning in the contaminated oil samples, poisoning patients with urine samples, blood samples and poisoned dead organ in the tin form of a comprehensive study and reached a clear conclusion. Trimethyltin and dimethyltin are believed to be the major poisoning components responsible for this rare event, along with monomethyltin, dioctyltin, inorganic tin and other heavy metal contaminants.