Document Type : Full research article
Authors
Department of Chemistry, Faculty of Science, Arak Branch, Islamic Azad University, P.O.Box: 38135-567, Arak, Iran
Abstract
A novel switchable-hydrophilicity solvent based liquid phase microextraction (SHS-LPME) coupled with flame atomic absorption spectrometry has been applied for preconcentration and extraction of Ag(I). In this study, Triethylamine (TEA) was selected as switchable solvent. The Ag (I)-1-(2-pyridylazo)-2-naphthol complex was extracted into organic phase by converting the protonated carbonate (P-TEA-C) to TEA. The experimental conditions were optimized using Plackett–Burman and Box–Behnken design methods. Under the optimum conditions, the detection limit, relative standard deviation and the enrichment factor were 0.35 μg L-1, 1.4% and 68, respectively. The calibration graph was linear over the range 2 to 500 μg L-1 with correlation coefficient of 0.997. The proposed method was successfully applied to determine of trace silver in water samples.
Keywords
[1] L. Kocurova, I.S. Balogh, L. Nagy, F. Billes, A. Simon and V. Andruch, Application of a bisindocarbocyanine reagent for dispersive liquid–liquid microextraction of silver with subsequent spectrophotometric determination, Microchem. J. 99 (2011) 514-522.
[2] I.M. Dittert, D.L.G. Borges, B. Welz, A.J. Curtius and H. Becker-Ross, Determination of silver in geological samples using high-resolution continuum source electrothermal atomic absorption spectrometry and direct solid sampling, Microchim. Acta 167 (2009) 21-26.
[3] G. Absalan, M. Akhond, A.Z. Ghanizadeh, Z.A. Abedi and B. Tamami, Benzil derivative of polyacrylohydrazide as a new sorbent for separation, preconcentration and measurement of silver(I) ion, Sep. Purif. Technol. 56 (2007) 231-236.
[4] T. Daşbaşı, Ş. Saçmacı, S. Şahan, Ş. Kartal and A. Ülgen, Synthesis, characterization and application of a new chelating resin for on-line separation, preconcentration and determination of Ag(I) by flame atomic absorption spectrometry, Talanta 103 (2013) 1-7.
[5] Agency for Toxic Substances and Disease Registry, Toxicological Profile for Silver TP_90-24), Department of Health and Human Services, Public Health Service, Atlanta, GA, USA, 1990.
[6] D. Afzali, A.R. Mohadesi, B.B. Jahromi and M. Falahnejad, Separation of trace amount of silver using dispersive liquid–liquid based on solidification of floating organic drop microextraction, Anal. Chim. Acta 684 (2011) 54-58.
[7] J. Chena, S. Xiao, X. Wu, K. Fang and W. Liu, Determination of lead in water samples by graphite furnace atomic absorption spectrometry after cloud point extraction, Talanta, 67 (2005) 992-996.
[8] O, Ortet and A.P, Paiva, Liquid–Liquid Extraction of Silver from Chloride Media by N, N’ -Tetrasubstituted Dithiomalonamide Derivatives, Sep. Sci. Technol. 45 (2010) 1130–1138.
[9] M.K. Rofouei, M. Payehghadr, M. Shamsipur and A. Ahmadalinezhad, Solid phase extraction of ultra-traces silver(I) using octadecyl silica membrane disks modified by 1,3-bis(2-cyanobenzene) triazene (CBT) ligand prior to determination by flame atomic absorption, J. Hazard. Mater. 168 (2009) 1184-1187.
[10] M. Ghaedi, A. Shokrollahi, K. Niknam, E. Niknam, A. Najibi and M. Soylak, Cloud point extraction and flame atomic absorption spectrometric determination of cadmium(II), lead(II), palladium(II) and silver(I) in environmental samples, J. Hazard. Mater. 168 (2009) 1022-1027.
[11] P. Liang and L. Peng, Determination of silver (I) ion in water samples by graphite furnace atomic absorption spectrometry after preconcentration with dispersive liquid-liquid microextraction, Microchim. Acta 168 (2010) 45-50.
[12] Z.A. Alothman, M.A. Habila, E.Yilmaz, N.M. Al-Harbi and M. Soylak, Supramolecular microextraction of cobalt from water samples before its microsampling flame atomic absorption spectrometric detection, Int. J. Environ. Anal. Chem. 95 (2015) 1311-1320.
[13] P.G. Jessop, D. J. Heldebrant, X. Li, C.A. Eckert and C.L. Liotta, Green chemistry: Reversible nonpolar-to-polar solvent, Nature 436 (2005) 1102.
[14] E. Yilmaz and M. Soylak, Switchable solvent-based liquid phase microextraction of copper (II): optimization and application to environmental samples, J. Anal. At. Spectrom. 30 (2015) 1629-1635.
[15] J. Durelle, J.R. Vanderveen, Y. Quan, C.B. Chalifoux, J.E. Kostin and P.G. Jessop, Extending the range of switchable-hydrophilicity solvents, Phys. Chem. Chem. Phys. 17 (2015) 5308-5313.
[16] J.R. Vanderveen, J. Durelle and P.G. Jessop, Design and evaluation of switchable-hydrophilicity solvents, Green Chem. 16 (2014) 1187-1197.
[17] M. Ezoddin, K. Abdi and N. Lamei, Development of air assisted liquid phase microextraction based on switchable hydrophilicity solvent for the determination of palladium in environmental samples, Talanta 153 (2016) 247-252.
[18] A. Asfaram, M. Ghaedi and A. Goudarzi, Optimization of ultrasound-assisted dispersive solid-phase microextraction based on nanoparticles followed by spectrophotometry for the simultaneous determination of dyes using experimental design, Ultrason. Sonochem. 32 (2016) 407-417.
[19] Y. Zhou, J.Z. Song, F.F.K. Choi, H.F. Wu, C.F. Qiao, L.S. Ding, S.L. Gesang and H.X. Xu, An experimental design approach using response surface techniques to obtain optimal liquid chromatography and mass spectrometry conditions to determine the alkaloids in Meconopsi species, J. Chromatogr. A 1216 (2009(7013-7023.
[20] H. Tavallali, S. Yazdandoust and M. Yazdandoust, Cloud point extraction for the preconcentration of silver and palladium in real samples and determination by atomic absorption spectrometry, CLEAN – Soil, Air, Water 38 (2010) 242-247.
[21] S. Rastegarzadeh, N. Pourreza and A. Larki, Determination of trace silver in water, wastewater and ore samples Using dispersive liquid–liquid microextraction coupled with flame atomic absorption spectrometry, Ind. Eng. Chem. Res. 2240 (2014) 1–5.
[22] X. Wen, L. Kong, M. Chen, Q. Deng, X. Zhao and J. Guo, A new coupling of spectrophotometric determination with ultrasound-assisted emulsification dispersive liquid–liquid microextraction of trace silver, Spectrochim. Acta A 97 (2012) 782-787.
[23] G. Khayatian and B. Pourbahram, Ultrasound-assisted emulsification microextraction and preconcentration of trace amounts of silver ions as a cyclam complex, J. Anal. Sci. Technol. 7 (2016) 1-8.
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