Recent Trends and Future Perspectives of Emergent Analytical Techniques for Mercury Sensing in Aquatic Environments

被引:34
作者
Ali, Shahid [1 ]
Mansha, Muhammad [1 ]
Baig, Nadeem [2 ]
Khan, Safyan Akram [1 ]
机构
[1] King Fahd Univ Petr & Minerals KFUPM, Interdisciplinary Res Ctr Hydrogen & Energy Stora, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals KFUPM, Interdisciplinary Res Ctr Membranes & Water Secur, Dhahran 31261, Saudi Arabia
关键词
Mercury Methylation; Sensors; Analytical Methods; Fluorescent Probes; HIGHLY SELECTIVE FLUORESCENT; PEROXIDASE MIMETIC ACTIVITY; GRAPHENE OXIDE; COLORIMETRIC DETECTION; GOLD NANOPARTICLES; METHYL-MERCURY; ELECTROCHEMICAL DETERMINATION; AQUEOUS-SOLUTION; VISUAL DETECTION; ELEMENTAL MERCURY;
D O I
10.1002/tcr.202100327
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Environmental emissions of mercury from industrial waste and natural sources, even in trace amounts, are toxic to organisms and ecosystems. However, industrial-scale mercury detection is limited by the high cost, low sensitivity/specificity, and poor selectivity of the available analytical tools. This review summarizes the key sensors for mercury detection in aqueous environments: colorimetric-, electrochemical-, fluorescence-, and surface-enhanced Raman spectroscopy-based sensors reported between 2014-2021. It then compares the performances of these sensors in the determination of inorganic mercury (Hg2+) and methyl mercury (CH3Hg+) species in aqueous samples. Mercury sensors for aquatic applications still face serious challenges in terms of difficult deployment in remote areas and low robustness, reliability, and selectivity in harsh environments. We provide future perspectives on the selective detection of organomercury species, which are especially toxic and reactive in aquatic environments. This review is intended as a valuable resource for scientists in the field of mercury sensing.
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页数:24
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