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Assessment of some imported apple fruits (Malus domestica) commonly sold in Nigeria for alkaline and trace metal contents


E Okorie
J Ochinimhe

Abstract

Three different apples were analysed for their heavy metal and alkaline metal contents. Results of this study using Flame Atomic Absorption  Spectrophotometer and flame photometer indicated heavy metal ranges
from 0.04 – 0.08 µg/g (Zn), 3.20 – 3.70 µg/g (Pb), 1.62 – 1.76 µg/g (Ni), 0.09 – 0.21 µg/g (Cr), 2.70 – 2.80 µg/g (Ca), 0.37 – 0.52 µg/g (Fe), 0.04 – 0.06 µg/g (Cd) and 0.12 – 0.17 µg/g (Cu). This study showed that Pb, Ni, Cr, Fe and Cu have objectionable concentrations that are higher than the acceptable permissible limits by WHO. Cultivation of these apples may have occurred on polluted soils.

Keywords: Flame photometer, apples, heavy metals, alkaline metals, AAS.

Journal Identifiers


eISSN: 1997-342X
print ISSN: 1991-8631