塔霍河河口加利福尼亚贻贝必需元素和重金属含量的评估
Assessment of essential elements and heavy metals content on Mytilus galloprovincialis from river Tagus estuary.
作者信息
Santos I, Diniz M S, Carvalho M L, Santos J P
机构信息
CFA, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.
出版信息
Biol Trace Elem Res. 2014 Jun;159(1-3):233-40. doi: 10.1007/s12011-014-9974-y. Epub 2014 Apr 25.
Trace elemental content was analysed in edible tissues of Mytilus galloprovincialis collected in five different sampling areas near the mouth of river Tagus estuary in Lisbon. The concentrations of essential elements (S, K, Ca, Fe, Cu, Zn, As, Br and Sr) were determined by energy-dispersive X-ray fluorescence (EDXRF) spectrometry, while toxic elements (Cr, Cd, Hg, Se and Pb) were measured by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The results show that the essential elements K and S are present at the highest concentrations in all the studied samples reaching 2,920 and 4,520 μg g(-1) (fresh weight), respectively. The highest levels of heavy metals found were in two areas close to the city for Pb and Cd, but below the maximum allowed values.
对在里斯本塔霍河河口附近五个不同采样区域采集的地中海贻贝可食用组织中的痕量元素含量进行了分析。通过能量色散X射线荧光光谱法（EDXRF）测定必需元素（硫、钾、钙、铁、铜、锌、砷、溴和锶）的浓度，而通过电感耦合等离子体原子发射光谱法（ICP-AES）测定有毒元素（铬、镉、汞、硒和铅）。结果表明，在所研究的所有样品中，必需元素钾和硫的浓度最高，分别达到2920和4520μg g⁻¹（鲜重）。发现重金属含量最高的是靠近城市的两个区域的铅和镉，但低于最大允许值。
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