López F J Sánchez, Garcia M D Gil, Morito N P Sánchez, Vidal J L Martínez
Department of Analytical Chemistry, University of Almería, La Cañada, Almería 04120, Spain.
Ecotoxicol Environ Saf. 2003 Feb;54(2):223-8. doi: 10.1016/s0147-6513(02)00050-7.
Contamination of the American red crayfish, from the Guadiamar riverside, is due to the disastrous toxic spill that occurred on 25 April 1998 in the mining area of Aznalcóllar-Los Frailes, Spain. A high concentration of heavy metals in the waters from the mine pool and their spill to the river Guadiamar was the cause of the destruction of a great number of animal and vegetable organisms. An ICP-MS method for the total determination of heavy metals (Cu, Zn, Pb, and Cd) in whole bodies of American red crayfish (Procambarus clarkii) was used. Metals were extracted from the matrix in a closed-vessel microwave digestion system with nitric acid and hydrogen peroxide. A study of the uncertainty of the method for the determination of metals was carried out; at a concentration of 5 microg/L, the uncertainty was below 34%.
来自瓜迪亚马尔河畔的美国红小龙虾受到污染，这是由于1998年4月25日在西班牙阿兹纳尔科拉尔-洛斯弗拉伊莱斯矿区发生的灾难性有毒物质泄漏事件所致。矿坑积水里的高浓度重金属及其向瓜迪亚马尔河的泄漏是大量动植物有机体遭到破坏的原因。采用电感耦合等离子体质谱法（ICP-MS）对美国红小龙虾（克氏原螯虾）整体中的重金属（铜、锌、铅和镉）进行总量测定。在密闭容器微波消解系统中用硝酸和过氧化氢从样品基质中提取金属。开展了该金属测定方法的不确定度研究；在浓度为5微克/升时，不确定度低于34%。
