Estimated Heavy Metal Residues in Egyptian Vegetables in Comparison with Previous Studies and Recommended Tolerable Limits

Reduction of heavy metals content in contaminated vegetables due to the post-harvest treatments

“…Also, Cr was only detected in cucumber samples before and after treatments. Meanwhile, Cr was not detected in untreated potato and tomato samples as previously mentioned in our previous study [2]. On the other hand, total reduction ratio of Cu in potato samples was lower than in tomato and cucumber samples, and this may be due to the high levels of combined Cu with potato tissues as naturally [23].…”

“…Series AA) at the Central Laboratory, National Research Centre. The determination condition such as preparation of standard solutions, specific wave length for the metals, slit width, detection limits and calculation of metal concentration were applied according to Abdel-Rahman et al [2].…”

“…They disclosed that washing of vegetables by ginger solution (8%) had the highest removal for heavy metals than the other methods. Therefore, the aim of this study was to investigate the effect of household processing; including washing, shelling, and soaking in vinegar on heavy metal levels in highly contaminated vegetables (potato, tomato and cucumber) of our previous study [2].…”

Exposure assessment of heavy metal residues in some Egyptian fruits

“…The standards were prepared from the individual 1000 mg/kg standard in 0.1 N HNO 3 . Working standards solutions were prepared from the previous stock by dilution using 0.1 N HNO 3 till the needed concentrations for atomic absorption spectrophotometer [39,40].…”

Heavy metals content in some non-alcoholic beverages (carbonated drinks, flavored yogurt drinks, and juice drinks) of the Egyptian markets

“…The standards were prepared from the individual 1000 mg kg −1 standards (Merck), in 0.1 N HNO 3 . Working standards were prepared from the previous stock solutions by dilution using 0.1 N HNO 3 till the needed concentrations for determination [29].…”