Results 1 to 10 of about 63,663 (114)
Speciation of Trace Element Compounds in Samples of Biota From Marine Ecosystems [PDF]
Chemical Speciation and Bioavailability, 2011 AbstractThe toxicity, mobility, bioavailability and bioaccumulation of metals are dependent on the particular physico-chemical form in which the element occurs in the environment. Special attention has been paid to metals which are essential for the proper functioning of organisms if present in appropriate amounts but are toxic if in excess (i.e.
Jacek Namieśnik, Piotr Konieczka
exaly +2 more sources
Trace Element Systematics in Cold Seep Carbonates and Associated Lipid Compounds
Chemical Geology, 2019 Abstract Seeping of methane-rich fluids at submarine cold seeps drives intense microbial activity and precipitation of authigenic carbonates. Some trace elements play an important role in the biogeochemical processes operating at cold seeps, especially as specific enzymatic co-factors related to methanogenesis and the anaerobic oxidation of methane ...
Xudong Wang, Germain Bayon, Dong Feng
exaly +6 more sources
Science of The Total Environment, 2023 Whillans Subglacial Lake (SLW) lies beneath 801 m of ice in the lower portion of the Whillans Ice Stream (WIS) in West Antarctica and is part of an extensive and active subglacial drainage network. Here, the geochemical characterization of SLW rare earth elements (REE), trace elements (TE), free amino acids (FAA), and phenolic compounds (PC) measured ...
Clara Turetta +8 more
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Biofortification of essential nutritional compounds and trace elements in rice and cassava [PDF]
Proceedings of the Nutrition Society, 2006 Plant biotechnology can make important contributions to food security and nutritional improvement. For example, the development of ‘Golden Rice’ by Professor Ingo Potrykus was a milestone in the application of gene technology to deliver both increased nutritional qualities and health improvement to wide sections of the human population.
Sautter, Christof +3 more
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The Influence of Trace Elements on the Metabolism of Aromatic Compounds by Soil Fungi [PDF]
Journal of General Microbiology, 1960 SUMMARY: The effect of copper, iron, manganese and zinc on the metabolism of catechol, o-,m- and p-hydroxybenzoic, o-, m- and p-methoxybenzoic, 3:4-dimethoxybenzoic and vanillic acids was investigated. Aspergillus niger, Hormodendrum sp. and Penicillium sp. mycelia which were deficient in the various trace elements were the organisms used.
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Assessing the Physicochemical Stability of a Compounded Neonatal Trace Element Solution
Journal of Pharmacy & Pharmaceutical Sciences, 2018 PURPOSE: Alberta Health Services (AHS) recommends the adoption of a new neonatal multi-trace element formulation containing zinc sulfate, copper sulfate, selenious acid and sodium iodide to be compounded internally in appropriate AHS pharmacies. The objective of this study was to assess the physicochemical stability of this formulation under commonly ...
Forugh Sanaee +5 more
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Journal of Analytical Methods in Chemistry, 1993 Liquid chromatographs, coupled with graphite furnace atomic absorption spectrometers, have been widely used for the identification and quantification of trace element compounds. The quantification of the discontinuous signals from the spectrometer defining a chromatographic band is very much a matter of judgement and therefore prone to error.
Kölbl, G., Kalcher, K., Irgolic, K. J.
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Identification of volatile compounds, quantification of glycerol and trace elements in distilled spirits produced in Mozambique [PDF]
Journal of Food Science and Technology, 2019 Distilled spirits, in addition to satisfying the legal requirements with respect to its composition, must possess a sensorial quality capable of satisfying its consumers. The present work describes the analysis of volatile compounds, trace elements and glycerol in thirteen samples of Mozambican spirits collected in different regions of the country ...
Manuel Carlos Minez Tábua +9 more
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The Effect of Active Compounds and Trace Elements Extracted from Artemisia Fruit on Some Liver Enzymes in Humans. [PDF]
Arch Razi Inst, 2023 Mahmood AR, Abdullah MR.
europepmc +1 more source
Chelate compounds and their use for correction of trace element deficiencies in livestock (review)
Veterinary Science TodayLivestock and poultry diseases occurring due to mineral or vitamin deficiencies are widely reported and belong to the factors restraining the development of livestock industry. Almost until the 90s of the last century, the conditions associated with trace element deficiency were prevented and treated using inorganic compounds.
A. G. Koshchaev +3 more
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