نتایج جستجو برای: iodine compounds
تعداد نتایج: 247474 فیلتر نتایج به سال:
introduction: iodine deficiency disorders (idd) are the most common epidemiological problems in the world, including our country. in order to prevent idd and its consequences, iodized table salt is being used in our country since 1989. at present, this program is 18 years old. the surveillance of idd may be implemented to assess the prevalence of idd, identify high risk areas for intervention a...
The title compounds react with iodine to give the iodinecarbonyl complexes (*7-C5H5)Co(CO)l2 and (j?-EtMe4C5)Co(CO)l2. The reactions of the same compounds with the cyanogen halides X C N (X = Br or I) give rise to the formation of mixed cyanocarbonyl complexes (^-C5H5)Co(CO)(CN)X and (7?-EtMe4C5)Co(CO)(CN)X (X = Br or I) respectively. The compounds have been characterized by elemental analyses ...
The significance of inorganic and organic forms of iodine in the evolution of plants and animals is reviewed. Iodine is one of the most electron-rich atoms in the diet of marine and terrestrial organisms, and it enters cells via iodide transporters. Iodide, which acts as a primitive electron donor through peroxidase enzymes, has an ancestral antioxidant function in all iodide-concentrating cell...
SEVERAL TESTS have been proposed for determining the gross contamination sometimes encountered in serums submitted for protein-bound iodine analysis (1-5). These screens are all l)ased on the use of the coupled Ce(IV-As(III)) reaction as a detection device. However, ceric ions in strong acid solution represent a powerful oxidation system for many organic compounds (6). There is, therefore, a go...
Magnetic carbon nanofibers (CNFs) carbonized at different temperatures were prepared from bacterial cellulose (BC) alloyed with magnetic fluid (MF) or Fe3O4 powder to facilitate the efficient use of biomass resources. The CNFs nanoparticles demonstrated high saturation magnetizations and coercivities up a carbonization temperature 800 °C. Iodine-treated BC showed substantial increase in char yi...
Simple water treatment devices are designed to treat small amounts of drinking water for home use. This study was undertaken to develop an iodine-releasing polymeric formulation and examine its potential as a domestic water purifier for untreated surface water. The antimicrobial tablet formulation was made from gum arabic (GA), poly(vinylalcohol) (PVA), ethyl cellulose (EC), and poly(vinylpyrro...
It has long been known that treatment with propylthiouracil and other antithyroid drugs inhibits organic binding of iodine and leads to a reduction in total iodine in the thyroid (1). The work of Franklin et al. (2-4) showed that these agents also prevent incorporation of radioiodine into organic compounds by thyroid slices in Z.&O. Pitt-Rivers (5), finding that acetyldiiodotyrosine did not for...
The objective of this research was to investigate the effect heating temperature on quality parameters avocado and peanut oils subjected heating. Vegetable were heated at varying temperatures (110, 140, 170, 200 230�C for 30 min) follow alterations. Levels peroxide value, iodine thiobarbituric acid reactive substances, total polar compounds, refractive index, free acidity, fatty acids compositi...
A microwave-induced iodine-catalyzed simple, rapid and convenient synthesis of different types of quinoxalines via condensation of 1,2-diamines with 1,2-dicarbonyl compounds has been accomplished with an excellent yield.
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