Abstract
We have developed a cloud point extraction procedure based on room temperature ionic liquid for the preconcentration and determination of mercury in water samples. Mercury ion was quantitatively extracted with tetraethyleneglycol-bis(3- methylimidazolium) diiodide in the form of its complex with 5,10,15,20-tetra-(4-phenoxyphenyl)porphyrin. The complex was back extracted from the room temperature ionic liquid phase into an aqueous media prior to its analysis by spectrofluorimetry. An overall preconcentration factor of 45 was accomplished upon preconcentration of a 20 mL sample. The limit of detection obtained under the optimal conditions is 0.08 μg mL−1, and the relative standard deviation for 10 replicate assays (at 0.5 g mL−1 of Hg) was 2.4%. The method was successfully applied to the determination of mercury in tap, river and mineral water samples.
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References
Eisler R (2004) Mercury hazards from gold mining to humans, plants and animals. Environ Contam Toxicol 181:139–198
Holmes P, James KAF, Levy LS (2009) Is low level environmental mercury exposure of concern to human health? Scien Total Environ 408:171–182
Clifton JC (2007) Mercury exposure and public health. Pediatr Clin North Am 54:237–239
Song JY, Hou M, Zhang LX (2006) Determination of mercury at trace level in natural water samples by hydride generation atomic absorption spectrophotometry after cloud point extraction preconcentration. Chin Chem Lett 17:1217–1220
Rivaro P, Ianni C, Soggia F, Frache R (2007) Mercury speciation in environmental samples by cold vapour atomic absorption spectrometry with in situ preconcentration on a gold trap. Microchim Acta 158:345–352
Geng W, Nakajima T, Takanashi H, Ohki A (2008) Determination of mercury in ash and soil samples by oxygen flask combustion method-Cold vapor atomic fluorescence spectrometry (CVAFS). J Hazard Mater 154:325–330
Li Y, Hu B (2007) (2007) Sequential cloud point extraction for the speciation of mercury in seafood by inductively copuled plasma optical emisión spectrometry. Spectrochim Acta B Atomic Spectrosc 62:1153–1160
Minnich MG, Miller DC, Parsons PJ (2008) Determination of As, Cd, Pb, and Hg in urine using inductively coupled plasma mass spectrometry with the direct injection high efficiency nebulizer. Spectrochim Acta B Atomic Spectrosc 63:389–395
Bozkurt SS, Ayata S, Kaynak I (2009) Fluorescence-based sensor for Pb(II) using tetra-(3- bromo-4-hydroxyphenyl)porphyrin in liquid and immobilized medium. Spectrochim Acta A Mol Biomol Spectrosc 72:880–883
Silva EL, dos Santos Roldan P, Gine MF (2009) Simultaneous preconcentration of copper, zinc, cadmium, and nickel in water samples by cloud point extraction using 4-(2-pyridylazo)-resorcinol and their determination by inductively coupled plasma optic emission spectrometry 171:1133–1138
Yuan CG, Lin K, Chang A (2010) Determination of trace mercury in environmental samples by cold vapor atomic fluorescence spectrometry after cloud point extraction. Microchim Acta 171:313–319
Li J, Lu W, Ma J, Chen L (2011) Determination of mercury(II) in water samples using dispersive liquid-liquid microextraction and back extraction along with capillary zone electrophoresis. Microchim Acta 175:301–330
Hinze WL, Pramauro E (1993) A critical review of surfactant mediated phase separations (cloud point extractions) theory and applications. Crit Rev Anal Chem 24:133–177
Sanz-Medel A, Campa MDF, Gonzalez EB, Fernandez-Sanchez ML (1999) Organised surfactant assemblies in analytical atomic spectrometry. Spectrochim Acta B 54:251–287
Stalikas CD (2002) Micelle-mediated extraction as a tool for separation and preconcentration in metal analysis. Trends Anal Chim 21:343–355
Wei D, Ivaska A (2008) Applications of ionic liquids in electrochemical sensors. Anal Chim Acta 607:126–135
Pavagadhi S, Basheer C, Balasubramanian R (2011) Application of ionic liquid supported cloud point extraction for the determination leucine-arginine in natural waters. Anal Chim Acta 686:87–92
Handy ST (2005) Room temperature ionic liquids: different classes and physical properties. Curr Org Chem 9:959–988
Han X, Armstrong DW (2007) İonic liquids in separations. Acc Chem Res 40:1079–1086
Yakuphanoglu F, Okutan M, Koysal O, Ozder S, Ocakoglu K, Icli S (2005) Dielectric studies of tetraethylene glycol-bis(3-methylimidazolium)dichloride (TEGDC) exhibiting large negative dielectric anisotropy. J Phys Chem B 109:24338–24342
Zafer C, Ocakoglu K, Ozsoy C, Icli S (2009) Dicationic bis-imidazolium molten salts for efficient dye sensitized solar cells: Synthesis and photovoltaic properties. Electrochim Acta 54:5709–5714
Bozkurt SS, Kaynak I, Kurtbay HM, Merdivan M (2010) Determination of trace metal ions using porphyrins as chelating agents by high performance thin layer chromatography -densitometry. J Liq Chromatogr Relat Technol 33:748–760
Yingjie L, Bin H (2007) Sequential cloud point extraction for the speciation of mercury in seafood by inductively coupled plasma optical emission spectrometry. Spectrochim Acta B 62:1153–1160
Niazi A, Momeni-Isfahani T, Ahmari Z (2009) Spectrophotometric determination of mercury in water samples after cloud point extraction using nonionic surfactant TritonX- 114. J Hazard Mater 165:1200–1203
de Wuilloud JCA, Wuilloud RG, Silva MF, Olsinaa RA, Martinez LD (2002) Sensitive determination of mercury in tap water by cloud point extraction preconcentration and flow injection cold vapor inductively coupled plasma optical emission spectrometry. Spectrochim Acta B 57:365–374
Chen H, Chen J, Jin X, Wei D (2009) Determination of trace mercury species by high performance liquid chromatography-inductively coupled plasma mass spectrometry after cloud point extraction. J Hazard Mater 172:1282–1287
Aranda PR, Gil RA, Moyano S, De Vito IE, Martinez LD (2008) Cloud point extraction of mercury with PONPE 7.5 prior to its determination in biological samples by ETAAS. Talanta 75:307–311
Martinis EM, Bertón P, Olsina RA, Altamirano JC, Wuilloud RG (2009) Trace mercury determination in drinking and natural water samples by room temperature ionic liquid based-preconcentration and flow injection cold vapor atomic absorption spectrometry. J Hazard Mater 167:475–481
Yin Xue-Bo (2007) Dual-cloud point extraction as a preconcentration and clean-up technique for capillary electrophoresis speciation analysis of mercury. J Chromatog A 1154:437–443
Garrido M, Di Nezio MS, Lista AG, Palomeque M, Fernandez Band BS (2004) Cloud point extraction/preconcentration on-line flow injection method for mercury determination. Anal Chim Acta 502:173–177
Shah AQ, Kazi TG, Baig JA, Afridi HI, Kandhro GA, Arain MB, Kolachi NF, Wadhwa SK (2010) Total mercury determination in different tissues of broiler chicken by using cloud point extraction and cold vapor atomic absorption spectrometry. Food Chem Toxicol 48:65–69
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Bozkurt, S.S., Ocakoglu, K. & Merdivan, M. Separation and preconcentration of mercury in water samples by ionic liquid supported cloud point extraction and fluorimetric determination. Microchim Acta 177, 47–52 (2012). https://doi.org/10.1007/s00604-011-0751-8
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DOI: https://doi.org/10.1007/s00604-011-0751-8