Determination of mercury in sewage sludge by direct slurry sampling graphite furnace atomic absorption spectrometry

被引:27
作者
Baralkiewicz, D [1 ]
Gramowska, H [1 ]
Kózka, M [1 ]
Kanecka, A [1 ]
机构
[1] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland
关键词
ultrasonic slurry sampling; electrothermal vaporization; mercury; sewage sludge; CADMIUM; LEAD;
D O I
10.1016/j.sab.2005.01.010
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Ultrasonic slurry sampling electrothermal atomic absorption spectrometry (ETAAS) method was elaborated to the determination of Hg in sewage sludge samples with the use of KMnO4+Pd modifier. The minimum sample amount required for slurry preparation with respect to sample homogeneity was evaluated by weighting masses between 3 and 30 mg directly into the autosampler cups. Validation of the proposed method was performed with the use of Certified Reference Materials of sewage sludge, CRM 007-040 and CRM 144R. Two sewage sludge samples from Poznan (Poland) city were analysed using the present direct method and a method with sample digestion, resulting in no difference within statistical error. (c) 2005 Elsevier B.V, All rights reserved.
引用
收藏
页码:409 / 413
页数:5
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