نتایج جستجو برای: nickel determination

تعداد نتایج: 284032  

Journal: :Journal of Chromatography & Separation Techniques 2018

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Uğur Sahin Senol Kartal Ahmet Ulgen

A coprecipitation method has been developed for the determination of Cr(III), Mn(II), Fe(III), Co(II), Cu(II), Cd(II) and Pb(II) ions in aqueous samples by flame atomic absorption spectrometry (FAAS) with the combination of pyridine, nickel(II) as a carrier element and potassium thiocyanate as an auxiliary complexing agent. The obtained coprecipitates were dissolved with nitric acid and measure...

Journal: :Talanta 2000
L S Teixeira F R Rocha M Korn B F Reis S L Ferreira A C Costa

Flow-injection solid-phase spectrophotometry is applied for sequential determination of nickel and zinc, exploiting their different sorption rates on 1-(2-thiazolylazo)-2-naphthol (TAN) immobilized on C(18)-bonded silica. The Zn(II) sorption rate on the solid support is constant for flow rates ranging from 0.70 to 2.2 ml min(-1), but for Ni(II) the sorption rate decreases with increasing flow r...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

utrlizegauss newtonalgorithnfor determination of equilibrium constantin donor acceptor

2008
J Walowski M Djordjevic Kaufmann B Lenk C Hamann J McCord M Münzenberg

The use of femtosecond laser pulses generated by a Ti:Sapphire laser system allows us to gain an insight into the magnetization dynamics on time scales from sub-picosecond up to 1 ns directly in the time domain. This experimental technique is used to excite a polycrystalline nickel (Ni) film optically and probe the dynamics afterwards. Different spin wave modes (the Kittel mode, perpendicular s...

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