Application ionic liquids on inorganic nanostructures for determination of pasticide in microextraction method
Subject Areas : Environment Pullotion (water and wastewater)Leila Gharehaghaji azar 1 , mohammad taghi vardini 2 , mir mehdi abolghasemi 3
1 - Islamic Azad University, Tabriz Branch,Ph.D. in Analytical Chemistry
2 - Associate Professor, Faculty of Islamic Azad University, Tabriz Branch ,Ph.D. in Analytical Chemistry*(Correspondence Author)
3 - Professor, Faculty of Maragheh University, Ph.D. in Analytical Chemistry.
Keywords: Nanostructure, organophosphors and pyrethroids pesticides -LDH/DABCO/ PW -solid phase microextraction, triazoles,
Abstract :
Background and Objective:Layered double hydroxides are a class of anionic clays that have received many attentions due to their multifunctional properties in numerous fields as drug supports, catalysis application, adsorption and photocatalysts. The main goal of this study is the synthesis and application of nanostructured layered double hydroxides fibers as sorbent for extraction and determination of agriculture pesticides by the headspace solid phase microextraction method. Method:At first part of study, LDH/DABCO/PW fiber was synthesized. The prepared fiber was characterized by SEM, FT-IR and TGA. Then, applicability of fiber for extraction of agriculture pesticides in river water samples by the head space solid phase microextraction method was evaluated. Findings: The results revealed that prepared fiber is appropriate for quantitative determination. Identification of desorbed analytes from the surface of fiber was performed in combination gas chromatography coupled with mass spectrometry. Under the optimized conditions, response was a linear function of concentration over the range0.001-100 µg L⁻¹.Correlation coefficients (R2) ranged from 0.965 to 0.999. And the limits of detection (LOD) were between 0.002-0.03 µgL⁻¹. The proposed fiber was successfully used for the determination of agriculture pesticides in spiked river water samples and RSD values were obtaine in the range of 4.9% - 11.1%. Discussion and Conclusion:The results showed that this proposed method has a good Dynamic Linear Range, repeatability and high sensitivity. It can also be used to extract other pesticides. Cheap and green, high sensitivity, no solvent use and low diagnostic limit are the unique advantages of the proposed method.
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- Mehrdiba.T., Piriyaei.M., Kanaani, L.,2016 .Solid Phase Microextraction for Measuring Agricultural Pesticides in Natural.Asian Pac J Cancer Biol,Vol.3,pp. 69-75
- Zhenga.X..Hea.L..Duana.Y..Jianga.X..Xianga. G..Zhaoa.W..Zhangb.Sh..2014.Poly(ionic liquid) immobilized magnetic nanoparticles as new adsorbent for extraction and of organophosphorus pesticidesfrom tea drinks.Journal of Chromatography, pp. 7
- Rodriguez.M. T.,R.Bautista, P., Pino.V.,Afonso.A. M., 2013. Ionic liquids in dispersive liquid-liquid microextraction. ScienceDirect.Trends in Analytical Chemistry,Vol. 51,pp. 87–106
- Zhang.P.,Qian.G.Xu.Z.P.,Shi.H.,Ruan.X., Yang.J., 2012. Effective adsorption of sodium dodecylsulfate (SDS) byhydrocalumite (CaAl-LDH-Cl) induced by self-dissolution and reprecipitation. mechanismJournal of Colloid and Interface Science,Vol. 367,pp.264–271
- Arenas.L., Gay.D.,Moro.C., Dias.S.,Azambuja. D.,Costa .T.,Benvenutti.E..Gushikem.Y.,2008. Brilliant yellow dye immobilized on silica and silica/titania based hybrid xerogels containing bridged positively charged 1,4-diazabicyclo)2.2.2(octane: preparation, characterization and electrochemical properties study. Microporous and Mesoporous Materials,Vol. 112,pp.273-283
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- Yang. C., Dongpeng. Y., Yu-Fei. S., 2014.Tris (hydroxymethyl) aminomethane modified layered double hydroxides greatly facilitate polyoxometalate intercalation.Dalton Transactions, Vol.43, pp.14570-14576
- Wang. X., Bai. Z., Zhao. D., Chai. Y., Guo M., Zhang. J., 2013. New synthetic route toMg-Al-CO3 layered double hydroxide usingmagnesite. Materials Research Bulletin,Vol. 48,pp. 1228–1232
- Tao. Q., He H. L. T., Frost. R.L., Zhang. D.., He. Z., 2014. Tailoring surface properties and structure of layered double hydroxides using silanes with different number of functional groups. J Solid State Chem, Vol. 213,pp.176–181
- Kloprogge. J. T., Frost. R. L., 1999. Fourier transform infrared and Raman spectroscopic study of the local structure of Mg-, Ni-, and Co-hydrotalcites. J. Solid State Chem,Vol.146,pp.506-515
- Zhao. S., Xu. J.,Wei. M., et al.,2011. Synergistic catalysis by polyoxometalate-intercalated layered double hydroxides. Oximation of aromatic aldehydes with large enhancement of selectivity. Green Chem , Vol. 13, pp. 384-389.