Slurry sampling for the determination of arsenic, cadmium, and lead in mainstream cigarette smoke condensate by graphite furnace-atomic absorption spectrometry and inductively coupled plasma-mass spectrometry
Slurry sampling for the determination of arsenic, cadmium, and lead in mainstream cigarette smoke condensate by graphite furnace-atomic absorption spectrometry and inductively coupled plasma-mass spectrometry
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DOI：
10.1007/s00216-001-1226-2
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发表时间：
2002-03-01
影响因子：
4.3
通讯作者：
Chang, MJ
中科院分区：
文献类型：
--
作者：
Torrence, KM;McDaniel, RL;Chang, MJ
采用悬浮液进样技术，石墨炉原子吸收光谱法（GF-AAS）和电感耦合等离子体质谱法（ICP-MS）测定卷烟主流烟气冷凝物中的As、Cd和Pb。通过静电沉淀收集1 R4 F参考香烟的MS CSC，并随后制备为具有和不具有分散剂Triton X-100的两种浆料样品。通过ICP-MS分析1 R4 F MS CSC浆料样品的结果与常规微波消解方法的结果的比较显示出良好的一致性。Triton X-100悬浮液进样和微波消解的精密度优于10%RSD，均上级不使用Triton X-100的悬浮液进样。用石墨炉原子吸收光谱法（GF-AAS）进一步验证了Triton X-100浆料样品分析结果的准确性。对于GF-AAS，方法的检出限为1.6，0.04，和0.5 μ g L-1的砷，镉，铅，分别。对于ICP-MS，方法的检测限为0.06，0.01，和0.38 μ g L-1的砷，镉，铅，分别。根据联邦贸易委员会（FTC）吸烟制度（35 mL抽吸体积，间隔60 s抽吸2 s）收集1 R4 F参考香烟的MS CSC，As、Cd和Pb的浓度分别为6.0+/-0.5、69.3 +/-2.8和42.0+/-2.1 ng/香烟。
The slurry sampling technique has been applied for the determination of As, Cd, and Pb in mainstream cigarette smoke condensate (MS CSC) by graphite furnace-atomic absorption spectrometry (GF-AAS) and inductively coupled plasma-mass spectrometry (ICP-MS). The MS CSC of the 1R4F Reference Cigarette was collected by electrostatic precipitation and was subsequently prepared as two slurry samples with and without the dispersing agent Triton X-100. Comparison of results determined by ICP-MS analyses of the 1R4F MS CSC slurry samples with those from the conventional microwave digestion method revealed good agreement. The precision of Triton X-100 slurry sampling and of microwave-assisted digestion was better than 10% RSD, and both were superior to slurry sampling without use of Triton X-100. The accuracy of the analytical results for the Triton X-100 slurry sample was further verified by graphite furnace-atomic absorption spectrometry (GF-AAS). For GF-AAS, the method limits of detection are 1.6, 0.04, and 0.5 mug L-1 for As, Cd, and Pb, respectively. For ICP-MS, the method limits of detection are 0.06, 0.01, and 0.38 mug L-1 for As, Cd, and Pb, respectively. The MS CSC of the 1R4F Reference Cigarette was collected in accordance with the Federal Trade Commission (FTC) smoking regime (35 mL puff volume of 2-s puff duration at an interval of 60 s) and the concentrations of As, Cd and Pb were 6.0+/-0.5, 69.3+/-2.8, and 42.0+/-2.1 ng/cigarette, respectively.