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Published:
Oct 21, 2014Keywords:
Flame photometer apples heavy metals alkaline metals AAS.
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Assessment of some imported apple fruits (<i>Malus domestica</i>) commonly sold in Nigeria for alkaline and trace metal contents
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.
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.
