نتایج جستجو برای: amberlite ir120

تعداد نتایج: 542  

Journal: :The Journal of biological chemistry 1963
T H PLUMMER C H HIRS

Greene (1) found that the proteins of bovine pancreatic juice and pancreatic zymogen granules contain identical concentrations of a ribonuclease that on chromatography over Amberlite IRC-50 exhibits the behavior of the enzyme previously called (2, 3) ribonuclease B. The present report deals with the isolation of ribonuclease B from bovine pancreatic juice and provides a description of some of i...

Journal: :British Journal of Clinical Pharmacology 1983

Journal: :محیط شناسی 0
حسین سیدکلال استادیار شیمی تجزیه، پژوهشگاه علوم و فنون هسته ای، پژوهشکدة چرخۀ سوخت هسته ای علیرضا خانچی دانشیار شیمی تجزیه، پژوهشگاه علوم و فنون هسته ای، پژوهشکدة چرخۀ سوخت هسته ای حسن هویدی استادیار برنامه ریزی محیط زیست، دانشکده محیط زیست، دانشگاه تهران محمد تقی اف کارشناس ارشد مهندسی شیمی، پژوهشگاه علوم و فنون هسته ای، پژوهشکدة چرخة سوخت هسته ای مریم نوروزی کارشناس ارشد شیمی تجزیه، دانشگاه پیام نور، اردکان

introduction rhodium metal is known for its stability in corrosive environments, physical beauty, and its unique properties. rhodium is now widely used for alloying platinum in thermocouples, crucibles, evaporating dishes, weighing boats windings for high-temperature furnaces. it has been applied as a coating material because of the hardness and luster of its surface. rhodium is present at abou...

Uptake of uranium (VI) ions using an anion exchanger resin, namely amberlite CG-400, was studied through this work in the presence of sulfate anions. Impact of various parameters including pH, contact time, initial concentration of uranium ions and intrusion with different anion contents (phosphate, chloride,sulfate, nitrate and fluoride) was examined on the sorption performance of the resin. A...

Journal: :Carbohydrate research 2007
Tae-Joon Park Michel Weïwer Xuejun Yuan Sultan N Baytas Eva M Munoz Saravanababu Murugesan Robert J Linhardt

Glycosylation in room temperature ionic liquid is demonstrated using unprotected and unactivated donors. Modest yields of simple benzyl glycosides and disaccharides of glucose, mannose and N-acetylgalactosamine were obtained in 1-ethyl-3-methylimidazolium benzoate with Amberlite IR-120 (H(+)) resin or p-toluenesulfonic acid as promoters.

2003
T. H. PLUMMER C. H. W. HIRS

Greene (1) found that the proteins of bovine pancreatic juice and pancreatic zymogen granules contain identical concentrations of a ribonuclease that on chromatography over Amberlite IRC-50 exhibits the behavior of the enzyme previously called (2, 3) ribonuclease B. The present report deals with the isolation of ribonuclease B from bovine pancreatic juice and provides a description of some of i...

2014
K. Kiran Ramesh Babu

The author synthesized a Green reagent N, N1-bis (4-dimethyl amino benzyl) ethylene diamine for the analysis of heavy metals namely Fe, Cd, Cr, Cu and Co by FAAS using Amberlite-XAD-16 in various environmental samples. The results shows good recovery compared with the results obtained with Cytosine. Effects of pH, reagent concentration, flowrate, volume of sample etc were studied.

Journal: :Beilstein Journal of Organic Chemistry 2008
Basudeb Basu Bablee Mandal Sajal Das Pralay Das Ashis K Nanda

A simple, chemoselective transfer hydrogenation of aryl aldehydes with the aid of Amberlite((R)) resin formate (ARF), a stable H-donor, in the presence of catalytic ruthenium trichloride is described. Aromatic aldehydes and 1,2-diketones are reduced efficiently and selectively, while aryl ketones remain unchanged. Several other potentially reducible groups attached to the aromatic moiety are un...

2013

Separation of the large molecular components of pooled human gastric juice into fractions of different biological activity by means of the Amberlite IRC-50 resin column has been reported earlier (1-6). In the present study a modification of this technic has been adapted to the fractionation of individual specimens of gastric juice. These modifications have improved and further standardized the ...

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