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Abstract

The aim of this chapter is to bring out the determination of arsenic in natural water under electrochemical techniques. Arsenite [As(III)] and arsenate [As(v)] are two predominant forms of arsenic that cause health concerns due to their significant toxicity and worldwide presence in drinking water and groundwater. The major sources of arsenic pollution may be natural process such as dissolution of arsenic-containing minerals and anthropogenic activities such as percolation of water from mines, etc. Among the countries facing arsenic contamination problems, Bangladesh is the most affected. Up to 77 million people in Bangladesh have been exposed to toxic levels of arsenic from drinking water. Therefore, it has become an urgent need to provide arsenic-free drinking water in rural households throughout Bangladesh. This chapter reveals the detection techniques and catalytic activity of different modified electrodes. Electrode surface modification with metallic nanoparticles (NPs) and carbonaceous nanomaterials (carbon nanotubes) can improve detection sensitivity and selectivity by circumventing the interferences from various endogenous metals or organic compounds in water. Numerous publications have been published to develop sensitive, reproducible and economically cheap sensor in the electrochemical field. In case of all the electrochemical methods, the detection limit is below the World Health Organization guideline value of 10 ppb (133.3 nM).

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Acknowledgements

The authors acknowledge the Ministry of Education, Bangladesh and the World Academy of Sciences for the financial support and development of their laboratory facilities.

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The authors didn’t have any conflict of interest regarding this contribution.

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Correspondence to Mohammad Hasnat or Mohammed M. Rahman .

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Hasnat, M., Tanjila, N., Rahman, M.M., Rahman, M.M. (2020). Electrochemical Methods for the Detection of Toxic As(III) and As(V) from Natural Water. In: Shah, M., Banerjee, A. (eds) Combined Application of Physico-Chemical & Microbiological Processes for Industrial Effluent Treatment Plant. Springer, Singapore. https://doi.org/10.1007/978-981-15-0497-6_15

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