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1

Badania zanieczyszczenia osadow portowych zwiazkami cynoorganicznymi

100%
Medrzycka K., Dubiella-Jackowska A., Wasik A., Namiesnik J.
Przegląd Komunalny
|
2006
|
nr 09
75-77
2

Platinum group elements: a challenge for environmental analytics

100%
Dubiella-Jackowska A., Polkowska Z., Namiesnik J.
Polish Journal of Environmental Studies
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2007
|
tom 16
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nr 3
329-345
An increased worldwide usage of platinum group elements (PGE) has been observed during recent decades. High amounts of PGE are applied in such areas as chemical industry and jewellery production, but the increased demand for these metals primarily depends on the introduction of automobile catalytic converter systems. Catalytic converters have also been considered to be a major source of PGE pollution. The similar Pt:Rh ratio, which is used in these autocatalysts, was found in various environmental samples as well. The present literature review indicates that the concentration of these metals has increased considerably in the last twenty years in different environmental matrices, resulting in ecological and human health risks. Because of the importance of PGE and their trace levels in environmental and biological matrices, sensitive methods are required for reliable determination. Details of the particular steps of analytical procedures for PGE quantification in environmental samples such as road dust, airborne particulate matter, soil, benthic sediments, water, wastewater and biological samples are discussed. Sampling and sample storage and preservation techniques are presented. Moreover, the most frequently used extraction, enrichment, detection and determination procedures for PGE are described.
3

Preparation of soil and sediment samples for determination of organometallic compounds

100%
Dubiella-Jackowska A., Wasik A., Przyjazny A., Namiesnik J.
Polish Journal of Environmental Studies
|
2007
|
tom 16
|
nr 2
Organometallic compounds are widely used in almost all sectors of industry. As a result of emissions from natural and anthropogenic sources they are released to the environment, where they undergo a variety of conversions and interactions. Some organometallic compounds exhibit high toxicity. Organometallic compounds of mercury, tin, lead, selenium and arsenic are among the most common and hazardous compounds. Based on literature dealing with the occurrence and methods of determination of selected organometallic compounds of mercury, tin, lead, selenium and arsenic, we describe their sources, uses and the mechanism of toxicity. Fundamental problems associated with speciation analysis are discussed and the basic steps of analytical procedure used for the determination of organometallic compounds of Hg, Sn, Pb, Se, and As in soil and bottom sediments, including sample collection, preservation, storage, extraction, separation and determination, are characterized.
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