نتایج جستجو برای: iodine compounds
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High total iodine content and significant amounts of iodinated amino acids, but not of thyronines, have been reported in milk of various species. Since the human neonate requires thyroxine-like iodine compounds for central nervous system development, analyses of thyroxine-like iodine compounds such as butanol-extractable iodine of colostrum or early milk were indicated. Four samples of human mi...
Iodine is found in organic forms in plants and animals and in inorganic forms in natural water samples. Methods of identification and quantitative determination for iodine species are decided by the types of compound and the matrices in which they occur. Iodine is an essential element and specific radioimmunoassay methods have been devised for physiologically important compounds (thyroxine and ...
X-ray absorption spectra of a number of organic iodine and bromine compounds of biological relevance, as well as of a series of iodine compounds with different oxidation states, have been measured. The iodine K-edge spectra (XANES) are found to be relatively featureless but the position of the edge is found to be sensitive to formal valence (among other factors), and the edge shape to the numbe...
PURPOSE To elucidate Japanese trends for perioperative disinfection and antibiotic selection during cataract surgeries. METHODS Perioperative iodine use and antibiotic prophylaxis for cataract surgery were surveyed in eight regions in Japan by mail or through interviews from February 1 to March 1, 2014. RESULTS We surveyed 572 surgeons, of whom 386 (67%) responded. Most of the surgeons (94%...
The method of filter paper chromatography has proved exceedingly useful in studying the nature of plasma iodine in animals injected with carrier-free doses of I131. The sensitivity of this method is such that an analysis can be carried out with less than 0.001 y of plasma iodine. Through application of this method, it has now been established that circulating iodine in the normal rat (l-3) and ...
Biaryl compounds are versatile building blocks in the synthesis of natural products, pharmaceuticals, agricultural chemicals and π-conjugated organic materials. This review describes a recent progress for the biaryl cross-coupling reaction of heteroaromatic compounds using hypervalent iodine reagent. Our novel biaryl coupling reaction is a unique method for constructing various heteroaromatic b...
Heterocyclic scaffolds represent the key structural subunits of many biologically active compounds. Over the last few years iodine-mediated reactions have been extensively studied due to their low cost and eco-friendliness. This Review covers advances in the field of iodine-mediated synthesis of heterocyclic compounds since 2006, especially with an emphasis on mechanisms of ring formation. In t...
R1_ values of organic iodine compounds which interfere with the determination of serum protein-bound iodine (P81) and butanol-extractable iodine (BEI) levels were obtained for the solvent system 2-butanol-4% NH4OH (3:1) utilizing descending paper chromatography. The feasibility of employing this system for identification of exogenous organic iodine in patients’ sera was investigated. In general...
www.onk.ns.ac.rs/Archive Vol 21, No. 2, June 2013 INTRODUCTION Iodine is the required element in the diet richest in electrons. Inorganic iodides are necessary for all living vegetable and animal cells, but only the Vertebrates have the thyroid gland and its iodinated hormones. In humans, the total amount of iodine is about 15-50 mg and roughly 80 % is located in the thyroid gland (1, 2). The U...
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