Results 271 to 280 of about 62,936 (308)
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PRECISE COMPOSITIONAL AND TRACE—ELEMENTAL ANALYSIS BY CHEMICAL METHODS IN COMPOUND SEMICONDUCTORS
Materials Science and Engineering: B, 1992Abstract The elemental composition and trace element impurities are known to be two important factors which greatly influence the physical properties of compound semiconductor materials. For stoichiometric analysis of compound semiconductors, high precision and accuracy with an error of less than or equal to 0.5% are prerequisite.
M.H. Yang, M.L. Lee, H.L. Hwang
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The use of iron chelates in compound fertilizers containing trace elements
Communications in Soil Science and Plant Analysis, 1983Abstract The chemical behaviour of iron chelates, incorporated in compound fertilizers with inorganic micronutrient compounds, was studied. Pot experiments were conducted to evaluate the effectiveness of these products in controlling iron deficiency. A commercial compound fertilizer, containing 0.09% Fe as Fe‐DTPA, 0.12% Cu, 0.16% Mn and 0.04% Zn as ...
R. Boxma, B. van Luit
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Growth effects of tin compounds in rats maintained in a trace element-controlled environment
Biochemical and Biophysical Research Communications, 1970Abstract In rats maintained on purified amino acid diets in trace element-controlled isolators, supplements of tin caused a significant growth effect. The diets were adequate in all known nutritional factors, including trace elements thus far identified as necessary, but they were composed of ingredients which kept trace element impurities at a ...
K, Schwarz, D B, Milne, E, Vinyard
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Separation of trace elements in solid samples by formation of volatile inorganic compounds☆
Talanta, 1982Methods for the separation and determination of trace elements by volatilization and by gas chromatography are reviewed. Examples are given of typical separations and apparatus suitable for inorganic gas chromatography is described.
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Archives of Environmental Contamination and Toxicology
Glaciers represent unique and threatened ecosystems, which have accumulated and continue receiving diverse, potentially toxic, and environmental contaminants released by past and ongoing anthropic activities. The accelerated ablation and retreat of glaciers due to climate warming can consequently alter the fate of contaminants trapped within their ice ...
Parolini M. +9 more
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Glaciers represent unique and threatened ecosystems, which have accumulated and continue receiving diverse, potentially toxic, and environmental contaminants released by past and ongoing anthropic activities. The accelerated ablation and retreat of glaciers due to climate warming can consequently alter the fate of contaminants trapped within their ice ...
Parolini M. +9 more
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Effect of biocoordination compounds of trace elements on productivity of pregnant sows
Russian Agricultural Sciences, 2011An increase of live weight, milk production, piglet birth weight, and litter weight of sows that received a ration with the addition of trace element compounds with ethylenediaminedisuccinic and methionine succinic acids is established. The live weight and survival of piglets produced from these animals were higher than those of the control animals ...
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American Journal of Health-System Pharmacy, 1996
The extent and sources of trace-element contamination during simulated manual and automated compounding of total parenteral nutrient (TPN) solutions were studied. Four experimental groups were prepared: (1) sterile water for injection as received from the manufacturer, (2) TPN bags manually filled with sterile water for injection, (3) TPN bags ...
M M, Pluhator-Murton +4 more
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The extent and sources of trace-element contamination during simulated manual and automated compounding of total parenteral nutrient (TPN) solutions were studied. Four experimental groups were prepared: (1) sterile water for injection as received from the manufacturer, (2) TPN bags manually filled with sterile water for injection, (3) TPN bags ...
M M, Pluhator-Murton +4 more
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Environmental and Experimental Botany, 2011
Sulfur assimilation and production of sulfur-containing compounds are essential biological activities that play critical roles in many biological processes, including the role of sulfur containing compounds such as glutathione and phytochelatin in trace element homeostasis in plants.
GunNam Na, David E. Salt
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Sulfur assimilation and production of sulfur-containing compounds are essential biological activities that play critical roles in many biological processes, including the role of sulfur containing compounds such as glutathione and phytochelatin in trace element homeostasis in plants.
GunNam Na, David E. Salt
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Trace elements and halogenated organic compounds in Canadian Arctic seabirds
Marine Pollution Bulletin, 2004Birgit M, Braune, Mary, Simon
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Collection of Research Papers of the National Mining University
Purpose. To investigate the nature and dynamics of trace elementscompound formation during coal thermal treatment and to determine their distribution among the resulting products. The methods. The study is based on theoretical research using a software package for modeling multicomponent equilibrium heterogeneous systems. Findings.
S Pinchuk, T Sharabura
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Purpose. To investigate the nature and dynamics of trace elementscompound formation during coal thermal treatment and to determine their distribution among the resulting products. The methods. The study is based on theoretical research using a software package for modeling multicomponent equilibrium heterogeneous systems. Findings.
S Pinchuk, T Sharabura
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