نتایج جستجو برای: butylammonium iodide
تعداد نتایج: 13751 فیلتر نتایج به سال:
Hypothyroidism from iodide transport deficiency is a rare disease, especially when found in two affected siblings. Treatment with high doses of iodide has been recommended, but no long term results have been reported. Two siblings with congenital hypothyroidism due to total failure to transport iodide have been followed up during twelve and a half years of treatment with oral potassium iodide. ...
A method for determining the concentration of iodide in beer using high-performance liquid chromatography/electrochemical detection was developed. Simple sample pretreatment of beer was performed using a monolithic silica disk-packed spin column, with a recovery rate of 84.9%. Separation of iodide ions from other endogenous compounds was carried out using a mobile phase of 10 mM sodium phosphat...
It is possible that there is an association between the butanol-insoluble protein-bound iodine developed in plasma when potassium iodide is fed and the reduction of serum and hepatic cholesterol. This fraction constitutes most of the protein-bound iodine increase observed in iodide-fed rabbits, dogs, rats and hypertensive human beings. It appears a few days after iodide feeding is begun and dis...
A procedure for the determination of iodide, thiocyanate and perchlorate ions in environmental water by two-dimensional ion chromatography has been developed. At first the iodide, thiocyanate and perchlorate ions were separated from interfering ions by a column (IonPac AS16, 250 mm x 4 mm). The iodide ion, thiocyanate and perchlorate ions were then enriched with an enrichment column (MAC-200, 8...
In this research, the vertical Bridgman method has used to perform the single crystal growth of cesium iodide alkali halide. To this purpose, a vertical cylindrical furnace equipped with electric elements with five different thermal regions has been designed and constructed. The temperature gradient of the furnace can be controlled up to 1000○C with 0.1○C accuracy. Several cesium iodide sample ...
The electrogenerated chemiluminescence (e.c.!.) and electrochemistry of the laser dyes, coumarin-2, coumarin-3D, rhodamine-GG (perchlorate), rhodamine-B (perchlorate), oxazine1 (perchlorate), and Nile Blue (perchlorate) were studied in acetonitrile using 0.1 M tetran-butylammonium perchlorate (TBAP) as a supporting electrolyte. Rather low intensity e.c.!. was obtained for all dyes except Nile B...
The electrochemical oxidation of R ~ ( b p y ) ~ ~ + and Fe(bpy)32+ in liquid sulfur dioxide was investigated. Ru(bpy),2+ shows two oxidation waves corresponding to the 3+ (1.01 V) and 4+ (2.76 V) forms while Fe(bpy),*+ undergoes three oxidations to the 3+ (0 .70 V), 4+ (2.92 V), and 5+ ( -3 .09 V) forms. While the 3+ form is stable. for both compounds on a coulometric time scale, the higher ox...
The title compound, C(34)H(25)Cl(3)O(3)S(2)·0.5CH(3)OH, was synthesized by the reaction of thio-phene-2-carbaldehyde with acetophenone and NaOH under solvent-free conditions, using tetra-butylammonium bromide as a phase-transfer catalyst. The central six-membered ring adopts a chair conformation with the bulky thio-phene, 4-chloro-phenyl and 4-chloro-benzoyl substituents in equatorial positions...
new kinds of hydroquinone derivatives were synthesized and along with a azo dye applied as additives in the iodide/iodine redox electrolyte for dye-sensitized solar cells and their effect on the short-circuit photocurrent of dye sensitized solar cells was investigated. addition of 0.05 m a hydroquinone derivative in the electrolyte comprising 0.5 m 1-methyl-3-propylimidazolium iodide (mpii) and...
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