Determination of Lead, Copper, Iron and Zinc Levels in Fruit Jams, Nectars, Juices and Beverages by Electrothermal and Flame Atomic Absorption Spectrometry
Orhan Acar 1  
 
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Gazi University, Atatürk Occupational High School, 06750, Akyurt, Ankara, Turkey
CORRESPONDING AUTHOR
Orhan Acar   

Gazi University, Atatürk Occupational High School, 06750, Akyurt, Ankara, Turkey
Publication date: 2017-10-19
 
Eurasian J Anal Chem 2011;6(2):114–128
 
KEYWORDS
ABSTRACT
electrothermal atomic absorption spectrometer (ETAAS) and flame atomic absorption spectrometer (FAAS) with a Zeeman-effect background corrector. Ni + Ir + NH4NO3 modifier mixture was used for the direct determinations of copper and lead in samples by ETAAS. Optimum mass and mass ratios of modifiers obtained were 30 μg Ni, 4 μg Ir, 8 μg NH4NO3. Pyrolysis and atomization temperatures, atomization and background profiles, characteristic masses and detection limits of Cu and Pb in samples were obtained. Detection limits and characteristic masses of Cu and Pb obtained by ETAAS in tomato leaves 1573a solution (0.8% m/v) were 21 μg kg-1 and 14 pg for Cu, and 1.8 μg kg-1 and 21 pg for Pb, respectively. Iron and Zn contents in samples were determined by FAAS. Detection limits of Zn and Fe obtained in tomato leaves 1573a solution (0.8% m/v) were 1.2 and 3.2 μg g-1 for Zn and Fe, respectively. Recovery tests for analytes in apple leaves 1515, tomato leaves 1573a standard reference materials and a peach nectar sample solution were studied and the results obtained were compared with certified and added values. The results of analytes obtained in samples were compared with previous literatures and works studied.
 
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