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Full-Text Articles in Physical Sciences and Mathematics
Simultaneous Determination Of Copper, Zinc And Selenium In Chicken Liver By Differential Pulse Polarography, Güler Ekmekci̇, Güler Somer, Olcay Şendi̇l
Simultaneous Determination Of Copper, Zinc And Selenium In Chicken Liver By Differential Pulse Polarography, Güler Ekmekci̇, Güler Somer, Olcay Şendi̇l
Turkish Journal of Chemistry
A differential pulse polarographic method for the determination of copper, zinc and selenium in chicken liver is described. It was possible to determine these elements in a single sample solution after acid digestion. Dried liver samples weighing about 3 g were digested using HNO_{3} and HClO_{4} acids. Britton-Robinson or acetate buffer has been found suitable as the supporting electrolyte. For the determination of selenium, the hydrogen catalytic peak was used after the addition of molybdenum(VI) to the buffer solution at about pH 3. Then the pH of the same solution was increased to 4 and zinc was determined. For the …
Column Preconcentration/Separation And Atomic Absorption Spectrometric Determinations Of Some Heavy Metals In Table Salt Samples Using Amberlite Xad-1180, Mustafa Soylak, Aslihan Uzun Karatepe, Lati̇f Elçi̇, Mehmet Doğan
Column Preconcentration/Separation And Atomic Absorption Spectrometric Determinations Of Some Heavy Metals In Table Salt Samples Using Amberlite Xad-1180, Mustafa Soylak, Aslihan Uzun Karatepe, Lati̇f Elçi̇, Mehmet Doğan
Turkish Journal of Chemistry
A simple and sensitive solid phase extraction procedure on Amberlite XAD-1180 resin is presented for the determination of chromium, cobalt, manganese and nickel at trace levels by atomic absorption spectrometry. The analyte ions were quantitatively taken at pH 9 by using ammonia/ammonium acetate buffer without any chelating agent. The influences of some analytical parameters such as sample volume, eluent type and flow rates on the retention of Cr, Co, Mn and Ni ions were examined. No influences were observed from the matrix ions of table salt samples. The detection limits for Cr, Co, Mn and Ni were 0.27 \mu g/g, …