نتایج جستجو برای: indirect determination

تعداد نتایج: 328778  

Journal: :physical chemistry and electrochemistry 0
masoomeh emadi young researchers and elite club, marvdasht branch, islamic azad university, marvdasht, iran mohammad alizare zare 1young researchers and elite club, marvdasht branch, islamic azad university, marvdasht, iran omran moradlou 2department of chemistry, college of sciences, alzahra university, tehran, iran maryam iranpour department of science and research branch, islamic azad university, fars, iran

a new and simple method followed by atomic absorption spectrometry has been developedfor indirect determination of ascorbic acid (aa). the proposed method was based on the oxidationof aa to dehydroascorbic acid with cu2+cation(200mgl-1)in an ammonium thiocyanatesolution atph2.4. aa reduces cu2+to cu+followed by the precipitation of cu+ with scn-. then, the excess ofcu2+in the solution was measu...

Journal: :Biotechnology in Animal Husbandry 2005

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