Speciation Methods for the Determination of Organotins (OTs) and Heavy Metals (MHs) in the Freshwater and Marine Environments

The paper evaluates the presence and content of traces of heavy metals Hg, Pb, Ni, Cd (total forms) from coal and solid combustion products, the degree of transfer and accessibility in the area of influence of a lignite power plant. The content of toxic heavy metals in residues are characterized by RE Meiji [ 1 (Pb and Hg) and REMeij �1 (Ni and Cd) for the filter ash. Pb and Ni content in the soil exceeds normal values, and Pb exceeds and alert value for sensitive soils around the residue deposit (70.20 mg.Kg-1). The degree of accessibility of the metals in plants (TF), reported at the Khan reference value (0.5), indicates a significant bioaccumulation level for the metals: Cd (1.9) and Hg (0.6) inside the deposit; Cd (0.39) at the base of the deposit, Hg (0.8) in the area of the thermal power plant. The trace levels of heavy metals analyzed by GFAAS and CVAAS (Hg), indicates a moderate risk potential for food safety and quality of life in the studied area.

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DETERMINATION OF HEAVY METALS AND SPATIAL DISTRIBUTION OF HEAVY METALS IN SOILS BASED ON SOIL PHYSICOCHEMICAL CHARACTERISTICS, NEAR AN ABANDONED MINE-COMPLEX IN BUMPUS COVE, TN

10.1130/abs/2018se-312933 ◽

2018 ◽

Author(s):

Melissa A. Magno ◽

◽

Ingrid Luffman ◽

Arpita Nandi

Keyword(s):

Heavy Metals ◽

Spatial Distribution ◽

Physicochemical Characteristics ◽

Abandoned Mine ◽

Soil Physicochemical Characteristics ◽

Heavy Metals In Soils

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Determination of Heavy Metals of Road Deposited Sediment in Ado-Ekiti, Nigeria Using XRF Technique

Academic Journal of Interdisciplinary Studies ◽

10.5901/ajis.2013.v2n12p61 ◽

2013 ◽

Author(s):

O.T. Ogunmodede ◽

O.O. Ajayi

Keyword(s):

Heavy Metals

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Semi-Automated Determination of Heavy Metals in Autopsy Tissue Using Robot-Assisted Sample Preparation and ICP-MS

Molecules ◽

10.3390/molecules26133820 ◽

2021 ◽

Vol 26 (13) ◽

pp. 3820

Author(s):

Heidi Fleischer ◽

Christoph Lutter ◽

Andreas Büttner ◽

Wolfram Mittelmeier ◽

Kerstin Thurow

Keyword(s):

Heavy Metals ◽

Human Tissue ◽

Cranial Nerves ◽

Systemic Exposure ◽

Body Fluids ◽

Automation System ◽

Robot Assisted ◽

Icp Ms ◽

Multiple Materials

The endoprosthetic care of hip and knee joints introduces multiple materials into the human body. Metal containing implant surfaces release degradation products such as particulate wear and corrosion debris, metal-protein complexes, free metallic ions, inorganic metal salts or oxides. Depending on the material composition of the prostheses, a systemic exposure occurs and may result in increasing metal concentrations in body fluids and tissues especially in the case of malfunctions of the arthroplasty components. High concentrations of Cr, Co, Ni, Ti and Al affect multiple organs such as thyroid, heart, lung and cranial nerves and may lead to metallosis, intoxications, poly-neuropathy, retinopathy, cardiomyopathy and the formation of localized pseudo tumors. The determination of the concentration of metals in body fluids and tissues can be used for predicting failure of hip or knee replacements to prevent subsequent severe intoxications. A semi-automated robot-assisted measurement system is presented for the determination of heavy metals in human tissue samples using inductively coupled plasma mass spectrometry (ICP-MS). The manual and automated measurement processes were similarly validated using certified reference material and the results are compared and discussed. The automation system was successfully applied in the determination of heavy metals in human tissue; the first results are presented.

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