trace metals
Determination of Trace Metals in Electrolytic Copper by ICP OES and ICP-MS
... of trace metals in copper samples can be difficult by the presence of high quantities of copper in solution, which can promote interferences and contamination of the nebulization ...of trace elements ...
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Evaluation And Characterization Of Trace Metals Contamination In The Surface Sediment Using Pollution Load Index PLI And Geo-Accumulation Index Igeo Of Ona River Western Nigeria
... of trace metals in aquatic environments has led to serious concerns about their influence on plant and animal life ...Heavy metals are chemical elements having atomic weights between ...Furthermore, ...
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Partitioning of trace metals between soft tissues and shells of Patella aspera
... The partitioning of the elements between the two tissues is consequently sensitive to changes in environmental conditions, suggesting that the difference between popula- tions are promoted in part or whole by the ...
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The trace metals accumulation in marine organisms of the southeastern Adriatic coast, Montenegro
... of trace metals (Co, Ni, As, Cd, Pb and Hg) were measured in seawater, sediments and marine organisms on the coastline of ...of trace metals in sea grass and mussels were compared with those ...
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Assessment of trace metals in Amazonian fish exposed to untreated urban sewage: high chromium concentrations in fish tissues
... sewage. Trace metal concentrations were evaluated in the muscle tissues of Schizodon fasciatus (herbivorous), Potamorhina latior (detritivorous), Triportheus angulatus (omnivorous), Plagioscion squamosissimus ...
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Contamination of Potentially Trace Metals in Aqaba and Eshidiya Phosphogypsum in Jordan
... Abstract. Contamination of As, Cd, Cr, Cu, Hg, Pb, Se, Zn and V in Jordan phosphogypsum by product has been determined. The aim of this study is to assess the potential of trace metals contamination caused ...
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Long term patterns in dissolved organic carbon, major elements and trace metals in boreal headwater catchments: trends, mechanisms and heterogeneity
... ern Sweden. The monitored parameters include both deposition and stream chemistry. Chemical monitoring includes [DOC] and other representative in-stream chemical pa- rameters (absorbance, pH, chloride, conductivity, ...
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Potentiometric stripping analysis with ultramicroelectrodes: theoretical foundation and applications in trace metals determination.
... POTENTIOMETRIC STRIPPING ANALYSIS WITH ULTRAMICROELECTRODES - THEO- RETICAL FOUNDATION AND APPLICATIONS IN TRACE METALS DETERMINATION. The Potentiometric Stripping Analysis (PSA) is described with emphasis ...
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Comparison of the speciation of trace metals in freshwater employing voltammetry, diffusive gradients in thin films (DGT) and a chemical equilibrium model.
... OF TRACE METALS IN FRESHWATER EMPLOYING VOLTAMMETRY, DIFFUSIVE GRADIENTS IN THIN FILMS (DGT) AND A CHEMICAL EQUILIBRIUM ...of metals in a synthetic freshwater was comparatively evaluated using Anodic ...
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Evaluation of trace metals (cadmium, chromium, copper and zinc) in tissues of a commercially important fish (Leporinus obtusidens) from Guaíba Lake, Southern Brazil
... accumulate metals and pass them on to human beings when consumed as food, causing chronic or acute diseases (Förstner and Wittmann, 1981; Khan and Weis, 1993; Adeyeye et ...on trace metal concentrations in ...
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Season- and year-wise distribution of some trace metals and anions in Gulshan Lake, Bangladesh
... some trace metals and anions in water collected from various spots of Gulshan ...important trace metals (Mn, Fe, Zn, Cr, Ni, Co, Cu, Cd and Pb) and anions (phosphate, sulphate, chloride and ...
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Contamination from an affluent of Furnas reservoir by trace metals
... - trace metals quantification Water and sediment samples were subjected to chemical analysis to determine Pb, Cd and Zn ...determining metals in samples were obtained from solutions prepared with ...
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Trace metals in soils and plants affected by mining waste rocks: consequences to ecosystem and options for restoration ( abd technosols)
... of trace metals/metalloid in waste rock, soils and plants in three different environments of an abandoned mine in ...and metals) and plants (total metal contents in shoots) were ...
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Evaluation of trace metals and major ions concentrations in rainwater in downtown São Paulo city.
... Complementando-se os estudos de avaliação da composição química de águas de chuva em São Paulo que vêm sendo realizados, de forma inédita conseguiu-se no presente trabalho determ[r] ...
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Determination of trace metals in fruit juices selected by ASAE using atomic absorption spectroscopy
... However, quantification of heavy metals in some samples by GFAAS may be difficult sometimes since the influence of a complex matrix seriously affects the analytical results. Therefore, different matrix modifiers ...
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Determination of trace metals in supended particulate matter (spm) in Ouro Preto City, Minas Gerais.
... Os resultados de concentrações de PTS no ar atmosférico de Ouro Preto encontrados são apresentados na Tabela 1, através da média geométrica, dos me- nores e maiores valores por sítio d[r] ...
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J. Braz. Chem. Soc. vol.20 número2
... of trace metals in the water column. Bio-indicators respond to metals from water and food, whereas DGT estimates the labile component of metals in the dissolved fraction of the ...
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J. Braz. Chem. Soc. vol.15 número1
... various trace metals using the whole set of data and grouping according to the site and, in general, did not find significant regressions, except in a few sites (Zn and Cd in stations 6, 7 and 17; Cu and Cr ...
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The Role of the Humic Substances in the Fractioning of Heavy Metals in Rodrigo de Freitas Lagoon, Rio de Janeiro - Brazil
... toxic metals originate from fuel combustion, non-ferrous metal smelting, iron and steel plants and sewage discharge (Brown ...these metals remain in solution will depend on their potential to form complexes ...
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Trace metal evidence for a poorly ventilated glacial Southern Ocean
... redox-sensitive trace metals to show that Southern Ocean sediments from two cores in the Atlantic sector were suboxic during deglaciation and the last glacial period, implying reduced ventilation and/or ...
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