肠道寄生虫平滑膨吻棘头虫作为铂族金属铂、钯和铑的敏感累积指示生物。

The intestinal parasite Pomphorhynchus laevis as a sensitive accumulation indicator for the platinum group metals Pt, Pd, and Rh.

作者信息

Sures B, Thielen F, Baska F, Messerschmidt J, von Bohlen A

机构信息

Zoologisches Institut I, Okologie-Parasitologie, Universität Karlsruhe, Kornblumenstrasse 13, D-76128 Karlsruhe, Germany.

出版信息

Environ Res. 2005 May;98(1):83-8. doi: 10.1016/j.envres.2004.05.010.

DOI:10.1016/j.envres.2004.05.010

PMID:15721887

Abstract

Concentrations of the platinum group elements Pt, Pd, and Rh were analyzed by adsorptive cathodic stripping voltammetry (Pt, Rh) and total-reflection X-ray fluorescence (Pd) in the intestinal helminth Pomphorhynchus laevis and its host Barbus barbus. The fish were caught in the Danube river south of the city of Budapest (Hungary) and were exposed to ground catalytic material for 28 days. Following exposure all three precious metals were taken up and accumulated in host organs and the parasites. Interestingly, in all tissues of the unexposed controls Pt was found, whereas Pd was not present in the muscle of the controls and Rh was not detectable in muscle and intestine of unexposed barbel. All metals were found at significantly higher concentrations in the acanthocephalan than in the tissues of barbel. These results are discussed with respect to the application of P. laevis as an accumulation indicator for metals.

摘要

采用吸附阴极溶出伏安法（测定铂和铑）和全反射X射线荧光法（测定钯），分析了肠道蠕虫平滑膨吻棘头虫及其宿主钝吻棒花鱼体内铂族元素铂、钯和铑的浓度。这些鱼捕获于匈牙利布达佩斯市以南的多瑙河，暴露于研磨后的催化材料中28天。暴露后，所有三种贵金属均被宿主器官和寄生虫摄取并积累。有趣的是，在未暴露对照组的所有组织中均发现了铂，而对照组肌肉中未检测到钯，未暴露的棒花鱼肌肉和肠道中未检测到铑。所有金属在棘头虫中的浓度均显著高于棒花鱼组织中的浓度。结合平滑膨吻棘头虫作为金属积累指示生物的应用对这些结果进行了讨论。