A systematic review and meta-analysis of voltammetric and optical techniques for inorganic selenium determination in water

Devi, Pooja and Jain, Rishabh and Thakur, Anupma and Kumar, Manish and Labhsetwar, N.K. and Nayak, M.K. and Kumar, Praveen (2017) A systematic review and meta-analysis of voltammetric and optical techniques for inorganic selenium determination in water. TrAC Trends in Analytical Chemistry, 95. pp. 69-85. ISSN 0165-9936

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Abstract

Selenium, a metalloid, commonly known for its essentiality has emerged out as a water pollutant of concern for environmentalist due to its presence in natural water resources above the permissible limit. The high level of selenium in the environment poses severe health and ecosystem threats, therefore, its monitoring in water is of paramount concern. The present contribution summarizes and critically analyzes the field promising techniques, in particular, voltammetry and optical approach, for selenium quantification in water. The role of sensor material (organic fluorophores, colorimetric dyes and quantum dots), electrode surface modifiers (Hg, Bi, polymers, nanomaterials, etc.), chelators, etc., to overcome various challenges and achieve better sensor performance in terms of detection limit, range, reproducibility, stability, selectivity, sensitivity, and so forth are critically discussed. To end with, the possible future developments are discussed towards the realization of a cost-effective & field deployable monitoring device for on-site selenium analysis.

Item Type: Article
Uncontrolled Keywords: Selenium; Voltammetry; Modified electrodes; Optical techniques; Water
Subjects: CSIO > Agri - Instrumentation
Divisions: Agri - Instrumentation
Depositing User: Ms. Jyotsana
Date Deposited: 06 Aug 2018 17:22
Last Modified: 06 Aug 2018 17:22
URI: http://csioir.csio.res.in/id/eprint/729

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