Evaluation of Laser Ablation Inductively Coupled Plasma Mass Spectrometry for the Quantitative Determination of Lead in Different Parts of Archeological Human Teeth.
Evaluation of Laser Ablation Inductively Coupled Plasma Mass Spectrometry for the Quantitative Determination of Lead in Different Parts of Archeological Human Teeth.
复制标题
激光烧蚀电感耦合等离子体质谱法定量测定考古人类牙齿不同部位铅的评估。
DOI：
10.1080/00387010903267807
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Amarasiriwardena,Dula
中科院分区：
文献类型：
--
作者：
Bellis,DavidJ;Parsons,PatrickJ;Jones,Joseph;Amarasiriwardena,Dula
The lead content of teeth or tooth-parts has been used a biomarker of cumulative lead exposure in clinical, epidemiological, environmental, and archaeological studies. Through the application of laser ablation inductively coupled plasma mass spectrometry, a pilot study of the micrometer-scale distribution and quantification of lead was conducted for two human teeth obtained from an archaeological burial site in Manhattan, New York, USA. Lead was highly localized within each tooth, with accumulation in circumpulpal dentine and cementum. The maximum localized lead content in circumpulpal dentine was remarkably high, almost 2000 µg g−1, compared to the mean enamel and dentine content of about 5 µg g−1. The maximum lead content in cementum was approximately 700 µg g−1. The large quantity of cementum found in the teeth suggested that the subjects had hypercementosis (excess cementum formation) of the root, a condition reported to have been prevalent among African-American slave populations. The distribution of lead in these human teeth was remarkably similar to the distribution that we previously reported in the teeth of present-day lead-dosed goats. The data shown demonstrate the feasibility of using laser ablation inductively coupled plasma mass spectrometry to examine lead exposure in archaeological studies.
