A Univariate Optimization Strategy for Pre-concentration of Cobalt(II) in Various Matrixes by a DLLME before Analysis Using FAAS

Zaman Sahb Mehdi; Saher Abdel Reda Ali Alshamkhawy

doi:10.22146/ijc.88218

A Univariate Optimization Strategy for Pre-concentration of Cobalt(II) in Various Matrixes by a DLLME before Analysis Using FAAS

https://doi.org/10.22146/ijc.88218

Zaman Sahb Mehdi^(1*), Saher Abdel Reda Ali Alshamkhawy⁽²⁾

(1) Department of Chemistry, College of Science, University of Thi-Qar, Thi-Qar 64001, Iraq; Department of Chemistry, College of Science, University of Al-Muthanna, Al-Samawah 58002, Iraq
(2) Department of Chemistry, College of Science, University of Thi-Qar, Thi-Qar 64001, Iraq
(*) Corresponding Author

Abstract

A procedure based on dispersive liquid-liquid microextraction (DLLME) for cobalt (Co) quantification in an Iraqi environmental matrix by flame atomic absorption spectroscopy (FAAS) was applied in this work. A case-study approach was chosen to obtain further in-depth information on the Co levels and to evaluate the effectiveness of N-salicylideneaniline (SAN) as a complexing agent for pre-concentration and extraction of Co. An univariate strategy was utilized to achieve the optimum extraction conditions. The estimated limits of detection (LOD) and quantification (LOQ) under optimum conditions were 1.04 and 3.47 µg L⁻¹, respectively. The results achieved by the proposed system were compared with those using the microwave digestion/graphite furnace atomic absorption spectrometer (MWD/GF-AAS) for digest samples and also for some water samples (Direct GF-AAS). The proposed procedure was applied for analyzing eleven environmental samples. The detectable Co levels for water samples ranged from 0.72 to 4.30 µg L⁻¹ with a relative standard deviation of 3.7–8.8%, while the concentration for solid samples ranged from 0.17–4.51 µg g⁻¹ (2.4–11.8 RSD %). DLLME/FAAS proposed procedure is effective, simple, and has the benefit of minimizing the organic solvent consumption by a few microliters, which results in little waste.

Keywords

bivalve molluscs; cobalt; environmental samples; Schiff base; solvent microextraction

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References

[1] Thakur, A., and Kumar, A., 2022, Recent advances in rapid detection and remediation of environmental pollutants utilizing nanomaterials-based (bio)sensors, Sci. Total Environ., 834, 155219.

[2] Varol, M., Gündüz, K., Sünbül, M.R., and Aytop, H., 2022, Arsenic and trace metal concentrations in different vegetable types and assessment of health risks from their consumption, Environ. Res., 206. 112252.

[3] Cerrato, A., Cannazza, G., Capriotti, A.L., Citti, C., La Barbera, G., Laganà, A., Montone, C.M., Piovesana, S., and Cavaliere, C., 2020, A new software-assisted analytical workflow based on high-resolution mass spectrometry for the systematic study of phenolic compounds in complex matrices, Talanta, 209, 120573.

[4] Altunay, N., Elik, A., and Gürkan, R., 2019, Vortex assisted-ionic liquid based dispersive liquid liquid microextraction of low levels of nickel and cobalt in chocolate-based samples and their determination by FAAS, Microchem. J., 147, 277–285.

[5] Zoroddu, M.A., Aaseth, J., Crisponi, G., Medici, S., Peana, M., and Nurchi, V.M., 2019, The essential metals for humans: A brief overview, J. Inorg. Biochem., 195, 120–129.

[6] Lison, D., 2022, “Chapter 9 – Cobalt” in Handbook on the Toxicology of Metals (Fifth Edition), Eds. Nordberg, G.F., and Costa, M., Academic Press, Cambridge, Massachusetts, US, 221–242.

[7] Czarnek, K., Terpiłowska, S., and Siwicki, A.K., 2015, Selected aspects of the action of cobalt ions in the human body, Cent. Eur. J. Immunol., 40 (2), 236–242.

[8] Han, Q., Huo, Y., Yang, X., He, Y., and Wu, J., 2020, Dispersive liquid–liquid microextraction coupled with graphite furnace atomic absorption spectrometry for determination of trace cobalt in environmental water samples, Int. J. Environ. Anal. Chem., 100 (8), 945–956.

[9] Patriarca, M., Barlow, N., Cross, A., Hill, S., Robson, A., Taylor, A., and Tyson, J., 2022, Atomic spectrometry update: Review of advances in the analysis of clinical and biological materials, foods and beverages, J. Anal. At. Spectrom., 37 (3), 410–473.

[10] Sibal, L.N., and Espino, M.P.B., 2018, Heavy metals in lake water: A review on occurrence and analytical determination, Int. J. Environ. Anal. Chem., 98 (6), 536–554.

[11] Flores, E.M.M., and Picoloto, R.S., 2018, “Sample Dissolution for Elemental Analysis | Microwave Induced Combustion” in Encyclopedia of Analytical Science (Third Edition), Eds., Worsfold, P., Poole, C., Townshend, A., and Miró, M., Academic Press, Oxford, UK, 98–109.

[12] Gaubeur, I., Aguirre, M.A., Kovachev, N., Hidalgo, M., and Canals, A., 2015, Dispersive liquid–liquid microextraction combined with laser-induced breakdown spectrometry and inductively coupled plasma optical emission spectrometry to elemental analysis, Microchem. J., 121, 219–226.

[13] Guedes, L.F.M., Braz, B.F., Freire, A.S., and Santelli, R.E., 2020, Assessing the harmfulness of high-salinity oilfield-produced water related to trace metals using vortex-assisted dispersive liquid-liquid microextraction combined with inductively coupled plasma optical emission spectrometry, Microchem. J., 155, 104714.

[14] Arain, M.B., Yilmaz, E., and Soylak, M., 2016, Deep eutectic solvent based ultrasonic assisted liquid phase microextraction for the FAAS determination of cobalt, J. Mol. Liq., 224, 538–543.

[15] Sadlapurkar, A.V, Barache, U.B., Shaikh, A.B., Lawand, A.S., Gaikwad, S.H., and Lokhande, T.N., 2022, Development of new efficient and cost effective liquid-liquid extractive determination method for cobalt(II): Analysis of water, alloys and nano powder, J. Trace Elem. Miner., 2, 100026.

[16] Gharehbaghi, M., Shemirani, F., and Baghdadi, M., 2008, Dispersive liquid–liquid microextraction and spectrophotometric determination of cobalt in water samples, Int. J. Environ. Anal. Chem., 88 (7), 513–523.

[17] Mandal, S., and Lahiri, S., 2022, A review on extraction, preconcentration and speciation of metal ions by sustainable cloud point extraction, Microchem. J., 175, 107150.

[18] Yazıcı, E., Fırat, M., Selali Chormey, D., Gülhan Bakırdere, E., and Bakırdere, S., 2020, An accurate determination method for cobalt in sage tea and cobalamin: Slotted quartz tube-flame atomic absorption spectrometry after preconcentration with switchable liquid-liquid microextraction using a Schiff base, Food Chem., 302, 125336.

[19] Pires Santos, A., das Graças Andrade Korn, M., and Azevedo Lemos, V., 2017, Methods of liquid phase microextraction for the determination of cadmium in environmental samples, Environ. Monit. Assess., 189 (9), 444.

[20] Abd Al-ameer, A.S., and Mohan, H.G., 2022, Pre-concentration of some heavy metals using cloud point extraction, Univ. Thi-Qar J. Sci., 9 (1), 95–101.

[21] Gu, Y.X., Yan, T.C., Yue, Z.X., Liu, F.M., Cao, J., and Ye, L.H., 2022, Recent developments and applications in the microextraction and separation technology of harmful substances in a complex matrix, Microchem. J., 176, 107241.

[22] Ozkantar, N., Yilmaz, E., Soylak, M., and Tuzen, M., 2020, Pyrocatechol violet impregnated magnetic graphene oxide for magnetic solid phase microextraction of copper in water, black tea and diet supplements, Food Chem., 321, 126737.

[23] Bacon, J.R., Butler, O.T., Cairns, W.R.L., Cook, J.M., Mertz-Kraus, R., and Tyson, J.F., 2019, Atomic spectrometry update – A review of advances in environmental analysis, J. Anal. At. Spectrom., 34 (1), 9–58.

[24] Alharthi, S.S., and Al-Saidi, H.M., 2022, Designing a simple semi-automated system for preconcentration and determination of nickel in some food samples using dispersive liquid–liquid microextraction based upon orange peel oil as extraction solvent, Arabian J. Chem., 15 (9), 104094.

[25] Sixto, A., Mollo, A., and Knochen, M., 2019, Fast and simple method using DLLME and FAAS for the determination of trace cadmium in honey, J. Food Compos. Anal., 82, 103229.

[26] Silveira, J.R.K., Brudi, L.C., Waechter, S.R., Mello, P.A., Costa, A.B., and Duarte, F.A. 2023, Copper determination in beer by flame atomic absorption spectrometry after extraction and preconcentration by dispersive liquid–liquid microextraction, Microchem. J., 184, 108181.

[27] Trindade, J.S., Lemos, V.A., Mata Cerqueira, U.M.F., Novaes, C.G., Araujo, S.A., and Bezerra, M.A., 2021, Multivariate optimization of a dispersive liquid-liquid microextraction method for determination of copper and manganese in coconut water by FAAS, Food Chem., 365, 130473.

[28] Boukraa, Y., Barkat, D., Benabdellah, T., Tayeb, A., and Kameche, M., 2006, Liquid–liquid extraction of Cu(II), Co(II) and Ni(II) with salicylidèneaniline from sulphate media, Phys. Chem. Liq., 44 (6), 693–700.

[29] Lemos, V.A., Junior, I.V.S., Santos, L.B., Barreto, J.A., and Ferreira, S.L.C., 2020, A new simple and fast method for determination of cobalt in vitamin B12 and water samples using dispersive liquid-liquid microextraction and digital image analysis, Water, Air, Soil Pollut., 231 (7), 334.

[30] Yamina, B., 2016, Extractive separation of Cu²⁺–Co²⁺ and Ni²⁺–Co²⁺ mixtures using N-salicylideneaniline, Russ. J. Phys. Chem. A, 90 (13), 2642–2645.

[31] Boukraa, Y., Tayeb, A., Benabdellah, T., and Kameche, M., 2009, Temperature effect on the solvent extraction of copper(II), cobalt(II) and nickel(II) with salicylideneaniline from sulphate media, Phys. Chem. Liq., 47 (2), 133–139.

[32] Hadj Youcef, M., Benabdallah, T., and Reffas, H., 2015, Cloud point extraction studies on recovery of nickel(II) from highly saline sulfate medium using salicylideneaniline mono-Schiff base chelating extractant, Sep. Purif. Technol., 149, 146–155.

[33] Öztürk Er, E., Bakırdere, E.G., Unutkan, T., and Bakırdere, S., 2018, Trace determination of cobalt in biological fluids based on preconcentration with a new competitive ligand using dispersive liquid-liquid microextraction combined with slotted quartz tube–flame atomic absorption spectrophotometry, J. Trace Elem. Med. Biol., 49, 13–18.

[34] Eftekhari, M., Javedani-Asleh, F., and Chamsaz, M., 2016, Ultra-trace determination of Co(ІІ) in real samples using ion pair-based dispersive liquid-liquid microextraction followed by electrothermal atomic absorption spectrometry, Food Anal. Methods, 9 (7), 1985–1992.

[35] Beikzadeh, E., and Sarrafi, A.H.M., 2017. Determination of trace levels of cobalt ion in different real samples using dispersive liquid–liquid microextraction followed by flame atomic absorption spectrometry, J. Food Meas. Charact., 11 (3), 994–1002.

[36] Fang, Z., Dong, L., and Xu, S., 1992, Critical evaluation of the efficiency and synergistic effects of flow injection techniques for sensitivity enhancement in flame atomic absorption spectrometry, J. Anal. At. Spectrom., 7 (2), 293.

[37] Santos, L.B., de Assis, R.S., Silva, U.N., and Lemos, V.A., 2022, Switchable-hydrophilicity solvent-based liquid-phase microextraction in an on-line system: Cobalt determination in food and water samples, Talanta, 238, 123038.

[38] Bahar, S., and Babamiri, B., 2015, Preconcentration and determination of low amounts of cobalt in black tea, paprika and marjoram using dispersive liquid–liquid microextraction and flame atomic absorption spectrometry, J. Iran. Chem. Soc., 12 (1), 51–56.

[39] Mohammadzadeh, A., Ramezani, M., and Ghaedi, A., 2016, Flotation-assisted dispersive liquid–liquid microextraction method for preconcentration and determination of trace amounts of cobalt: Orthogonal array design, J. Anal. Chem., 71 (6), 535–541.

DOI: https://doi.org/10.22146/ijc.88218