Deuteration of 4-t-butyl-1-cyclohexenyl methyl ether was carried out at 80 °C in cyclohexane under pressure. Over Ru, Rh, and Pd, the reaction products consisted almost entirely of the cis and trans mixtures of the corresponding saturated ethers (cis- and trans-4-t-butyl-1-cyclohexyl methyl eth...
This experiment investigated the effect of dietary chromium (Cr as picolinate) on physical and biochemical characteristics of semen and carcass traits of adult male turkey.Seventy-two (72) male turkeys (16 weeks old) were randomly distributed into four dietary treatment groups (4 × 3 × 6) for ...
In this study, the effects of two hypocholesterolemic drugs, simvastatin (a statin) and chromium dipicolinate, on serum cholesterol levels, and cholesterol contents in muscular and adipose tissues were tested. Although we find no significant effects of both drugs on cholesterol serum levels, we ...
Chromium (Cr) concentrations in liver, kidney, spleen, heart, lymph node, skeletal muscle, bone, testis and urine of lambs were measured to trace the biodistribution and bioaccumulation of Cr after oral supplementation with chromium picolinate (CrPic). Twenty-four Santa Inês lambs were treated ...
Chromium picolinate is one of the most commonly used chromium dietary supplements available in the United States, and it has been marketed to consumers for use in weight loss, increasing muscle mass, and lowering serum cholesterol. Chromium picolinate is a synthetic compound that provides a bioa...
Chromium picolinate is advocated as an anti-diabetic agent for impaired glycemic control. It is a transition metal that exists in various oxidation states and may thereby act as a pro-oxidant. The present study has been designed to examine the effect of chromium picolinate supplementation on hyp...
Chromium picolinate is one of the important Cr3+ resources and is widely used in animal production. A convenient, reliable and rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the quantitative determination of chromium picolinate in animal fe...
As a man-made additive, chromium picolinate Cr(pic)3 has become a popular dietary supplement worldwide. In this paper Cr(pic)3 and its new derivatives Cr(6-CH3-pic)3 (1), [Cr(6-NH2-pic)2(H2O)2]NO3 (2) and Cr(3-NH2-pic)3 (3) were synthesized, and complexes 1 and 2 were characterized by X-ray crys...
Chromium is an essential trace element with anti-diabetic and anti-depressant effect; the latter is considered related to chromium properties of increasing brain serotonin. Cr3+ salts were shown to improve some forced swimming-parameters and to induce rewarding effects, which are additive to tho...
Chromium (III) picolinate, [Cr(pic)3], was synthesized and characterized by solid electron paramagnetic resonance (EPR) in both room and frozen temperatures. Broad EPR signals of the mer-[Cr(pic)3] complex were found for the solid with g values of 3.45 and 3.47 at room temperature and frozen at ...
The electrochemical behaviour of some hydrated layered manganese dioxides previously prepared and characterised was investigated by galvanostatic and potentiostatic studies at different conditions of temperature, type of electrolyte and counter electrode, number of cycles and depth of reduction....
Chemical and phase composition of manganese oxides obtained by Mn(II) oxidation in nitrate solutions has been studied by the methods of differential thermal analysis, IR spectroscopy, X-ray phase and chemical analyses. The product of Mn(II) oxidation with nitrate has been shown to be a partially...
The occurrence of inorganic pollutants especially heavy metals in aquatic environment has been a worldwide issue, and there is a need to develop methods for its removal from polluted water. The present study is devoted to the development of novel adsorbents based on zeolite materials for removal...
In this study, porous carbon (PC) was prepared from pyrolysis of sodium carboxymethyl cellulose (CMC) and was further treated with KMnO4 to fabricate manganese oxides coated PC (MnOx/PC). SEM, BET, XPS and FTIR technology were employed to explain their structures. Batch adsorption experiments fo...
Radioactive strontium and cobalt are two major contaminants in the low-level radioactive wastewaters (LLRWs). In this study, a manganese-antimony composite oxide (MnSb) were prepared to study the sorption behavior and the removal of Sr(II) and Co(II) from acidic wastewaters. The as-prepared MnSb...
Novel vermiculite-based hydrated zirconium oxide (ZrO(OH)2/VMT) nanocomposites were synthesized via a simple ion exchange-precipitation method and applied to remove Ni(II) from aqueous solution. After ZrO(OH)2 particles in the size range of 5–20 nm were loaded in the vermiculite (VMT), the prep...
The conversion of CO2 to methanol is seen as a potential environmental benign alternative source of fuel and chemicals. Manganese-cobalt catalyst shows promise for CO2 hydrogenation to methanol, but its selectivity towards hydrocarbons and other oxygenates needs to be suppressed. In this work, w...
Aluminium ammonium sulfate (AAS) was tested for reproductive/developmental toxicity in a two-generation study. Male and female rats were continuously given AAS in drinking water at 0, 50, 500 or 5000 ppm. Water consumption was decreased in all AAS-treated groups, and the body weight of parental ...
The metastable zone width (MSZW) and the induction times for the cooling crystallization of ammonium aluminum sulfate dodecahydrate from unseeded aqueous solution were measured using focused beam reflectance measurement (FBRM). Dependence of MSZW on cooling rate and saturation temperature and de...
The Egyptian phosphogypsum waste is treated using sulfuric acid prior the ammonium sulfate production. The relevant factors that would affect the removal efficiencies of some impurities are studied. The optimum conditions of the treatment are 8 M sulfuric acid solution and 1/4 solid/liquid ratio...
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