Electrochemical sensor based on Co3O4 and Au nanoparticles for simultaneous determination of As3+ and Hg2+ by stripping voltammetry
8.5
来源：
Nature
关键字：
ML brain science
发布时间：
2025-11-21 23:36
摘要：
A novel electrochemical sensor based on Co3O4 and Au nanoparticles was developed for the simultaneous detection of arsenic (As3+) and mercury (Hg2+) in environmental water samples. The sensor demonstrated high sensitivity with detection limits of 0.31 ppb for Hg2+ and 0.46 ppb for As3+. It was characterized by excellent linearity across a wide dynamic range and successfully tested on real water samples, indicating its potential for environmental monitoring of heavy metal contamination.
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关键证据
The sensor exhibited excellent linearity with a wide dynamic range for As3+ and Hg2+.
Detection limits for Hg2+ and As3+ were found to be 0.31 ppb and 0.46 ppb, respectively.
The sensor was successfully applied to real water samples, confirming its practical applicability.
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AI评分总结
A novel electrochemical sensor based on Co3O4 and Au nanoparticles was developed for the simultaneous detection of arsenic (As3+) and mercury (Hg2+) in environmental water samples. The sensor demonstrated high sensitivity with detection limits of 0.31 ppb for Hg2+ and 0.46 ppb for As3+. It was characterized by excellent linearity across a wide dynamic range and successfully tested on real water samples, indicating its potential for environmental monitoring of heavy metal contamination.