波兰比亚韦斯托克地区道路灰尘、隧道灰尘和常见草类中的铂、钯和铑含量：一项初步研究。
Platinum, palladium and rhodium content in road dust, tunnel dust and common grass in Białystok area (Poland): a pilot study.
作者信息
Leśniewska Barbara A, Godlewska-Zyłkiewicz Beata, Bocca Beatrice, Caimi Stefano, Caroli Sergio, Hulanicki Adam
机构信息
Institute of Chemistry, University of Bial?ystok, Hurtowa 1, 15-399 Białystok, Poland.
出版信息
Sci Total Environ. 2004 Apr 5;321(1-3):93-104. doi: 10.1016/j.scitotenv.2003.07.004.
Automobile traffic is the main source of Pt, Pd and Rh, i.e. platinum-group elements (PGEs), contamination in urban areas and there is growing concern about the effects of these emerging contaminants for people living in these areas. PGE contents were determined in samples of road dust, tunnel dust and common grass as well as pine needles collected from the residential areas of Białystok, northeast Poland. High resolution (HR) and quadrupole inductively coupled plasma mass spectrometry (ICP-MS) were compared for their adequacy in the environmental analysis of Pt and Rh. Palladium was determined by total X-ray fluorescence (TXRF) and HR-ICP-MS after matrix separation by reductive co-precipitation with Hg. The highest PGEs concentration was found in road dust samples. Platinum content in road dust varied from 34.2 to 110.9 ng g(-1), while that of Rh from 6.0 to 19.7 ng g(-1). The mean concentration of Pd in this matrix was 32.8 ng g(-1) as determined by TXRF analysis and 42.2 ng g(-1) by HR-ICP-MS. The highest Pt concentration in tunnel dust was found in the size fraction below 75 microm (22.3-23.3 ng g(-1)). The mean concentrations of PGEs in grass were 8.63 ng g(-1) for Pt, 0.65 ng g(-1) for Rh and 3.2 ng g(-1) for Pd. The concentration of PGEs in pine needles was below the limits of detection of the methods used.
汽车交通是城市地区铂（Pt）、钯（Pd）和铑（Rh），即铂族元素（PGEs）污染的主要来源，人们越来越关注这些新兴污染物对生活在这些地区的人们的影响。对从波兰东北部比亚韦斯托克居民区采集的道路灰尘、隧道灰尘、普通草以及松针样本中的PGEs含量进行了测定。比较了高分辨率（HR）电感耦合等离子体质谱仪（ICP-MS）和四极杆电感耦合等离子体质谱仪在Pt和Rh环境分析中的适用性。钯通过总X射线荧光光谱法（TXRF）以及在与汞进行还原共沉淀分离基质后采用HR-ICP-MS进行测定。道路灰尘样本中PGEs浓度最高。道路灰尘中的铂含量在34.2至110.9 ng g⁻¹之间，而铑含量在6.0至19.7 ng g⁻¹之间。通过TXRF分析测定该基质中钯的平均浓度为32.8 ng g⁻¹，通过HR-ICP-MS测定为42.2 ng g⁻¹。隧道灰尘中铂的最高浓度出现在粒径小于75微米的部分（22.3 - 23.3 ng g⁻¹）。草中PGEs的平均浓度分别为：铂8.63 ng g⁻¹、铑0.65 ng g⁻¹、钯3.2 ng g⁻¹。松针中PGEs的浓度低于所用方法的检测限。
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