Department of Chemistry and Physics, Southeastern Louisiana University, Hammond, LA 70402, USA.
Environ Pollut. 2010 Jun;158(6):2230-4. doi: 10.1016/j.envpol.2010.02.015. Epub 2010 Mar 15.
The aim of this study was the multi-elemental detection of toxic metals such as lead (Pb) in non-crushed oyster shells by using a portable X-ray fluorescence (XRF) spectrometer. A rapid, simultaneous multi-element analytical methodology for non-crushed oyster shells has been developed using a portable XRF which provides a quick, quantitative, non-destructive, and cost-effective mean for assessment of oyster shell contamination from Pb. Pb contamination in oyster shells was further confirmed by scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS). The results indicated that Pb is distributed in-homogeneously in contaminated shells. Oyster shells have a lamellar structure that could contribute to the high accumulation of Pb on oyster shells.
本研究的目的是利用便携式 X 射线荧光（XRF）光谱仪对未粉碎的牡蛎壳中的有毒金属（如铅（Pb））进行多元素检测。本研究使用便携式 XRF 开发了一种快速、同时分析多种元素的方法，用于非粉碎牡蛎壳，该方法为评估牡蛎壳中 Pb 的污染提供了一种快速、定量、无损且经济有效的手段。扫描电子显微镜结合能谱（SEM-EDS）进一步证实了牡蛎壳中的 Pb 污染。结果表明，Pb 在污染的壳中分布不均匀。牡蛎壳具有层状结构，这可能是导致 Pb 在牡蛎壳上高度积累的原因之一。
