Results 331 to 340 of about 667,402 (394)
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Journal of Toxicology: Clinical Toxicology, 1999
Chromium occurs primarily in the trivalent state (III), which is the most stable form, or in the hexavalent state (VI), which is a strong oxidizing agent. Elemental chromium (0) does not occur naturally on earth. Trivalent chromium (III) is an essential trace metal necessary for the formation of glucose tolerance factor and for the metabolism of ...
Donald G. Barceloux, Donald Barceloux
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Chromium occurs primarily in the trivalent state (III), which is the most stable form, or in the hexavalent state (VI), which is a strong oxidizing agent. Elemental chromium (0) does not occur naturally on earth. Trivalent chromium (III) is an essential trace metal necessary for the formation of glucose tolerance factor and for the metabolism of ...
Donald G. Barceloux, Donald Barceloux
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Mechanisms and individuality in chromium toxicity in humans.
Journal of Applied Toxicology, 2020With regards to health, chromium (Cr) is an ambiguous chemical element. Although it is considered to be an important micronutrient, it also is connected with several pathologies, including carcinogenicity.
Thelma Pavesi, J. Moreira
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Chemical & Engineering News Archive, 2003 Speciation of chromium in chromium yeast
World Journal of Microbiology and Biotechnology, 2014High-performance liquid chromatography was used to separate Cr(III) and Cr(VI) in samples with detection by inductively coupled plasma mass spectrometry(ICP-MS). The separation was achieved on a weak anion exchange column. The mobile phase was pH 7.0 ammonium nitrate solution.
Xuena, Guo +4 more
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The American Journal of Clinical Nutrition, 1993
Chromium metabolism of lactating women was evaluated by measuring diet, breast milk, urine, and serum chromium in 17 subjects 60 d postpartum. Breast milk chromium concentration was similar for the 3 d of collection with a mean +/- SE concentration of 3.54 +/- 0.40 nmol/L (0.18 ng/mL).
R A, Anderson +5 more
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Chromium metabolism of lactating women was evaluated by measuring diet, breast milk, urine, and serum chromium in 17 subjects 60 d postpartum. Breast milk chromium concentration was similar for the 3 d of collection with a mean +/- SE concentration of 3.54 +/- 0.40 nmol/L (0.18 ng/mL).
R A, Anderson +5 more
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Chromium–Chromium Bonding in Binuclear Azulene Chromium Carbonyl Complexes
European Journal of Inorganic Chemistry, 2010AbstractThe experimentally known cis‐[(η5,η5‐C10H8)Cr2(CO)6] structure with a rather long formal Cr–Cr single bond of about 3.3 Å is predicted by density functional theory to be the lowest energy C10H8Cr2(CO)6 structure. However, a trans‐[(η7,η5‐C10H8)Cr2(CO)6] structure lies in energy within ca. 4 kcal/mol of this global minimum.
Hongyan Wang +4 more
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Dislocation structure in chromium, chromium-rhenium, and chromium-iron alloys
Journal of the Less Common Metals, 1966Abstract Electron-transmission microscopy experiments were performed on chromium, chromium-rhenium, and chromium-iron alloys to investigate the effect of alloying on dislocation multiplication and configuration. It was found that the increase of dislocation density with strain was largely independent of composition, but that large alloying additions ...
C.N. Reid, A. Gilbert
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A comprehensive review on human health effects of chromium: insights on induced toxicity
Environmental science and pollution research international, 2022H. Hossini +10 more
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