نتایج جستجو برای: Ions concentration

تعداد نتایج: 500684  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1391

abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

ژورنال: علوم آب و خاک 2007
بهمن خلدبرین, , عنایت‌اله تفضلی, , عبدالحسین ابوطالبی, , نجفعلی کریمیان, ,

This study was conducted to evaluate the effect of salinity on concentration of potassium (K), sodium (Na) and chloride (Cl) ions, in sweet lime budded on five citrus rootstocks, including Bakraii (mandarin x sweet lime), Volcameriana, Sour orange, Sweet lime and Mexican lime in a glasshouse, using a randomized completely design with factorial arrangement and four replications. Rootstocks had...

بهمن خلدبرین, , عنایت‌اله تفضلی, , عبدالحسین ابوطالبی, , نجفعلی کریمیان, ,

This study was conducted to evaluate the effect of salinity on concentration of potassium (K), sodium (Na) and chloride (Cl) ions, in sweet lime budded on five citrus rootstocks, including Bakraii (mandarin x sweet lime), Volcameriana, Sour orange, Sweet lime and Mexican lime in a glasshouse, using a randomized completely design with factorial arrangement and four replications. Rootstocks had...

Journal: :JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 1987

A. A., E. Nikomanzari M. Hojati Fahim

The effect of chloride ions concentration on the electrochemical behavior of AISI 410 stainless steel in the simulated concrete pore (0.1 M NaOH + 0.1 M KOH) solution was investigated by various electrochemical methods such as Potentiodynamic polarization, Mott–Schottky analysis and electrochemical impedance spectroscopy (EIS). Potentiodynamic polarization curves revealed that increasing chlori...

Journal: :نشریه دانشکده فنی 0
ترابعلی براتعلی

des monocristaux de fluoraptite calcique dopes avec des ions mn substitues aux ions ca ont ete prepares en utilisant une methode de synthese qui permet de l'obtenir avec une faible concentration en defauts le long de l'axe senaire helicoidal. dans ces conditions les spectres d'excitation et de rpe montrent que les ions mn se placent uniquement dans ie site ca(l).

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
mohammad reza nilforoushan sasan otroj nasrien talebian

in this study, the blast furnace slag was used as absorbing bed and then, its ionic adsorption was studied. for this reason, various experimental parameters such as ph, contact time and the primary ion concentration were investigated. the remaining concentrations of ions such as; mn2+ and fe2+ in water were measured by atomic adsorption spectroscopy. the chemical and phase composition of slag, ...

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