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Majumder S, Marguí E, Roman-Ross G, Chatterjee D, Hidalgo M. Hollow fiber liquid phase microextraction combined with total reflection X-ray fluorescence spectrometry for the determination of trace level inorganic arsenic species in waters. Talanta 2020; 217:121005. [PMID: 32498873 DOI: 10.1016/j.talanta.2020.121005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/30/2020] [Accepted: 04/03/2020] [Indexed: 11/15/2022]
Abstract
In the present study, we investigated the possibilities and drawbacks of hollow fiber liquid phase microextraction (HF-LPME) combined with total reflection X-ray fluorescence (TXRF) spectrometry for the determination of low amounts of inorganic arsenic (As) species in water samples. The obtained results showed that a three-phase HF-LPME system was more suitable to be used in combination with TXRF than the two phase configuration, since lower detection limit and better precision for As determination can be attained. Relevant experimental parameters affecting As extraction (i.e. types of extractant, organic solvent, agitation speed, pH and extraction time) and TXRF analysis (deposition volume and drying mode) were systematically evaluated. It was found that As(III) was more efficiently extracted at pH 13, whereas, optimum pH for As(V) extraction was at pH 8.5. Limits of detection (LOD) achieved using the best analytical conditions meet the requirements of current legislation and allow the determination of inorganic As(V) and As(III) in water. The proposed method was also applied to different spiked environmental water samples for the preconcentration and subsequent determination of trace inorganic As species.
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Affiliation(s)
- Santanu Majumder
- Department of Chemistry, University of Girona, Campus Montilivi, s/n. 17071, Girona, Spain; Department of Geology & Geophysics, Texas A&M University, College Station, TX, 77843-3115, USA; Departmental of Environmental Management, International Centre for Ecological Engineering, University of Kalyani, Kalyani, 741 235, West Bengal, India; Department of Chemistry, University of Kalyani, Kalyani, 741 235, West Bengal, India
| | - Eva Marguí
- Department of Chemistry, University of Girona, Campus Montilivi, s/n. 17071, Girona, Spain
| | - Gabriela Roman-Ross
- AMPHOS 21 Consulting S.L., Passeig de Garcia i Faria 49-51, 08034, Barcelona, Spain
| | - Debashis Chatterjee
- Department of Chemistry, University of Kalyani, Kalyani, 741 235, West Bengal, India
| | - Manuela Hidalgo
- Department of Chemistry, University of Girona, Campus Montilivi, s/n. 17071, Girona, Spain.
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Yilmaz E. Use of hydrolytic enzymes as green and effective extraction agents for ultrasound assisted-enzyme based hydrolytic water phase microextraction of arsenic in food samples. Talanta 2018; 189:302-307. [DOI: 10.1016/j.talanta.2018.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 06/29/2018] [Accepted: 07/02/2018] [Indexed: 02/08/2023]
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Werner J, Grześkowiak T, Zgoła-Grześkowiak A, Stanisz E. Recent trends in microextraction techniques used in determination of arsenic species. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.05.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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