电感耦合等离子体质谱法测定铊中毒事件中铊含量

Determination of thallium in thallium poisoning event by inductively coupled plasma mass spectrometry

目的：用电感耦合等离子体质谱法测定铊中毒样品并考察其方法学。方法：优化仪器工作参数,用内标溶液校正基体效应干扰,用电感耦合等离子体质谱测定各样品铊含量。结果：本法的检出限为0.008μg/L,回收率96.8%~104.8%。经测定在尿样和餐具中检出高浓度铊。结论：用电感耦合等离子体质谱法测定铊中毒样品是一种灵敏快速、简便准确的方法。

Objective：The method of inductively coupled plasma mass spectrometry was used to determine thallium in poisoning sample with the method studied.Methods：The thallium was determined by ICP-MS with optimal instrument operation parameters selected.Results：The detection limit of this method was 0.008 μg/L,recovery rate was 96.8%~104.8%.High concentrative thallium was detected in urine and dishware.Conclusion：The method of ICP-MS is sensitive,rapid,simple and reliable for determination of thallium in poisoning sample.