Publications by authors named "Mohamed M Marei"

Article Synopsis
  • Current water quality monitoring typically provides only brief analyses at specific times, prompting interest in affordable, long-term sensors for reliable monitoring of contaminants in various water sources.
  • A key challenge for these sensors is the calibration process and the need to pre-treat samples to remove dissolved oxygen, which interferes with the analysis of certain heavy metals.
  • The researchers developed an innovative in-line electrochemical device that significantly reduces dissolved oxygen without altering the sample, showing effective performance with minimal energy consumption, making it suitable for various applications in laboratory-on-a-chip (LOC) setups.
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Remote unattended sensor networks are increasingly sought after to monitor the drinking water distribution grid, industrial wastewater effluents, and even rivers and lakes. One of the biggest challenges for application of such sensors is the issue of in-field device calibration. With this challenge in mind, we report here the use of anodic stripping coulometry (ASC) as the basis of a calibration-free micro-fabricated electrochemical sensor (CF-MES) for heavy metal determinations.

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