Publications by authors named "Emmanouil Evgenakis"
Article Synopsis
- - The study examined phosphorus (P) and heavy metals (HMs) in the surface sediments of three lakes in Northern Greece, revealing that while total P levels varied with seasons, there were no significant differences across the lakes.
- - Heavy metal concentrations were highest in Lake Kerkini, with the pattern of abundance being manganese (Mn), chromium (Cr), zinc (Zn), lead (Pb), nickel (Ni), copper (Cu), and cadmium (Cd), and many sediments exhibited potential biological risks due to elevated levels.
- - While some lakes had sediments classified as "unpolluted," Lakes Volvi and Kerkini showed moderate to heavy pollution from cadmium, with nickel and chromium presenting the most significant toxic risks and indicating
Method optimization for heavy metal determination in milk powder: application to milk samples from Greece.
Environ Sci Pollut Res Int
September 2018
The scope of this study was the development, optimization and validation of an analytical method for the determination of selected heavy metals and trace elements (As, Hg, Se, Cd, Cu, Pb, Mn, Fe, Ni, Zn, Cr) in milk powder, using microwave-assisted digestion. A statistical experimental design approach using central composite design (CCD) was carried out, to investigate the effects of three independent pretreatment variables (final digestion temperature (°C), HNO concentration (in % w/v), microwave hold time) on the heavy metal recovery of spiked undigested milk powder sample and to calculate the variable factor values which produce the optimum recovery. CCD results revealed that the optimum digestion conditions, with respect to maximum recovery were as follows: temperature 190 °C, HNO 56.
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