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Abstract A preconcentration procedure with solid phase extraction was developed to determine lead in samples of chicken feed by flame atomic absorption spectrometry (FAAS). The procedure involved Pb(II) sorption onto… Click to show full abstract
Abstract A preconcentration procedure with solid phase extraction was developed to determine lead in samples of chicken feed by flame atomic absorption spectrometry (FAAS). The procedure involved Pb(II) sorption onto a mini-column packed with Moringa oleifera husks. The flow and chemical variables of the proposed system were optimized through multivariate design. The limit of detection for lead was 1.66 μg L− 1 (0.27 μg g− 1) and the precision calculated on the basis of repeatability was below 1.3%. The develop method was successfully applied to spiked chicken feed samples, and accuracy was assessed through analysis of a certified reference material for rice flour (IRMM-804) and recovery tests, with recovery ranging from 83 to 144%.
Journal Title: Microchemical Journal
Year Published: 2017
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