Detection of lead nanoparticles in game meat by single particle ICP-MS following use of lead-containing bullets

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• 作者：Barbro Kollander ; Fredrik Widemo ; Erik Ågren…
• 关键词：Lead nanoparticles ; Single particle ICP ; MS ; Lead ammunition ; Game ; Enzymatic digestion
• 刊名：Analytical and Bioanalytical Chemistry
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：409
• 期：7
• 页码：1877-1885
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Analytical Chemistry; Biochemistry, general; Laboratory Medicine; Characterization and Evaluation of Materials; Food Science; Monitoring/Environmental Analysis;
• 出版者：Springer Berlin Heidelberg
• ISSN：1618-2650
• 卷排序：409

文摘

This study investigated whether game meat may contain nanoparticles of lead from ammunition. Lead nanoparticles in the range 40 to 750 nm were detected by ICP-MS in single particle mode in game shot with lead-containing bullets. The median diameter of the detected nanoparticles was around 60 nm. The particle mass concentration ranged from 290 to 340 ng/g meat and the particle number concentrations from 27 to 50 million particles/g meat. The size limit of detection strongly depended on the level of dissolved lead and was in the range of 40 to 80 nm. In game meat sampled more than 10 cm away from the wound channel, no lead particles with a diameter larger than 40 nm were detected. In addition to dissolved lead in meat that originated from particulates, the presence of lead nano particles in game meat represents a hitherto unattended source of lead with a largely unknown toxicological impact to humans.