Solid phase extraction and preconcentration of cobalt in mineral waters with PAR-loaded Amberlite XAD-7 and flame atomic absorption spectrometry

İnce, Muharrem; Kaya, Gökçe; Yaman, Mehmet

doi:10.1007/s10311-009-0218-x

Cited by 29 publications

(9 citation statements)

References 19 publications

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“…Amberlite 2 Journal of Chemistry XAD5 resins which are able to adsorb metal complexes have received a great deal of attention because of versatile usage with or without derivatization [19][20][21][22]. In particular, Amberlite XAD-7 resin possessing an intermediate polarity and hydrophilic surface as a highly crosslinked macroreticular acrylic resin (polyacrylic acid ester polymer) has been performed in SPE studies [23][24][25]. Moreover, the surface area and sorption capacity of Amberlite XAD-7 resin which has a surface area of 450 m 2 /g are higher than Amberlite XAD-2 whose surface area is 330 m 2 /g [26].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Some Trace Metals in Fish Species after Preconcentration with Congo Red on Amberlite XAD-7 Resin by Flame Atomic Absorption Spectrometry

Alpdoğan

San

Zor

2016

Journal of Chemistry

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A new procedure for separation and preconcentration of trace amounts of Cu(II), Ni(II), Fe(III), Zn(II), Cr(III), Cd(II), and Pb(II) in fish samples was proposed. The procedure is based on the adsorption of these metal ions on the column of Amberlite XAD-7 as congo red complexes prior to their determination by flame atomic absorption spectrometry (FAAS). Several factors that can affect the sorption and elution efficiency of the metal ions were investigated and optimized. The sorption was quantitative in the pH range of 6.0-9.0 for Cu(II) and Ni(II), 5.5-8.0 for Fe(III), 6.0-8.5 for Zn(II) and Cd(II), and 7.0-8.5 for Cr(III) and Pb(II). The optimum pH for simultaneous retention was 7.5. The sorption capacity of the resin was found to be 0.89, 0.72, 0.82, 0.61, 0.53, 0.84, and 0.78 mg/g for Cu(II), Ni(II), Fe(III), Zn(II), Cr(III), Cd(II), and Pb(II), respectively. The precision of the method was evaluated as the relative standard deviation obtained by analyzing a series of six replicates and below 6% for all seven elements. The validation of the method was performed by the analysis of certified reference materials. The proposed method was successfully applied to separation/ preconcentration and determination of these metals in fish samples.

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Section: Introductionmentioning

confidence: 99%

Analysis of Some Trace Metals in Fish Species after Preconcentration with Congo Red on Amberlite XAD-7 Resin by Flame Atomic Absorption Spectrometry

Alpdoğan

San

Zor

2016

Journal of Chemistry

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“…Amberlite XAD-4 has been often used as a solid sorbent to prepare a ligand-loaded resin (Dogru, Gul-Guven, and Erdogan 2007). Recently, Amberlite XAD resins have received increased attention as basic matrices for designing new chelating resins (Ince, Kaya, and Yaman 2010).…”

Section: Introductionmentioning

confidence: 99%

The Use of Fungal BiomassAgaricus bisporusImmobilized on Amberlite XAD-4 Resin for the Solid-Phase Preconcentration of Thorium

Özdemir

Okumuş

Dündar

et al. 2014

Bioremediation Journal

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Solid-phase extraction method was developed for the preconcentration of thorium (Th). Fungal biomass Agaricus bisporus was immobilized to Amberlite XAD-4 as solid-phase sorbent. The critical parameters such as pH of the sample solution, flow rate of the sample, volume of the sample, and the effect of major ions that affect the preconcentration of thorium in this system were evaluated. The optimum pH for the sorption of Th is 6.0, and quantitative elution occurs with 1.0 mol L −1 HCl. The loading capacity was determined as 0.079 mmol g −1 . The optimized method was validated through analysis of the certified reference material of tea leaves (NCS ZC73014) and successfully applied to the determination of Th in a real ore sample with satisfactory results.

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“…Preconcentration is a very important issue for achieving of low limits of detection. [25][26][27][28][29][30][31] Analytical chemists continue to search for samplepreparation procedures that are faster, easier, and less expensive to perform, but provide accurate and precise data with reasonable limits of quantitation. 32 Various methods including liquid-liquid extraction, 33,34 solid phase extraction (SPE), 35,36 cloud point extraction (CPE) 37,38 and solid phase microextraction (SPME) 39,40 have been developed.…”

Section: Introductionmentioning

confidence: 99%

Determination of copper in human hair and tea samples after dispersive liquid-liquid microextraction based on solidification of floating organic drop (DLLME-SFO)

Bahar

Zakerian

2012

J. Braz. Chem. Soc.

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proposto é simples, barato e altamente preciso. Neste estudo, a otimização de parâmetros experimentais que influenciam a extração, como tipo e volume dos solventes de extração e do dispersor, pH, quantidade de agente quelante e tempo de extração foi realizada normalmente usando uma abordagem passo-a-passo, na qual cada fator variou sequencialmente. O efeito dos íons interferentes na recuperação dos analitos também foi investigado. O gráfico de calibração foi linear no intervalo de 5-200 ng mL −1 , com limite de detecção de 3,4 ng mL −1. O desvio padrão relativo (RSD) foi 0,7% (n = 10, C = 2 ng mL -1 ) e o fator de enriquecimento, 28.A simple method of dispersive liquid-liquid microextraction-solidified floating organic drop (DLLME-SFO) prior to flame atomic absorption spectrometry was successfully used for separating and preconcentrating copper in human hair and tea samples. The proposed method was simple, cheap, and has high precision. In this study, optimization of experimental parameters influencing the extraction, such as type and volume of extraction and disperser solvents, pH, the amount of chelating agent and extraction time was normally carried out using a step-by-step approach, in which each factor was varied sequentially. The effect of the interfering ions on the analytes recovery was also investigated. The calibration graph was linear in the range of 5-200 ng mL . The relative standard deviation (RSD) was 0.7% (n = 10, C = 2 ng mL −1 ) and the enhancement factor was 28.Keywords: dispersive liquid-liquid microextraction, solidification, copper determination, tea and human hair analysis IntroductionTrace heavy metals are essential micro-nutrients and have a variety of biochemical functions in all living organisms. [1][2][3] Due to the positive and negative effects and the toxicity of trace heavy metals on human health and the environment, many researchers are interested in the analysis of trace metal contents of the environmental and the food samples. [4][5][6][7][8][9][10] Tea, one of the most widely consumed beverages in the world, is prepared from the young leaves of tea plants. It is considered as a healthy drink that has benefits including the prevention of many diseases. [11][12][13] Although copper is an essential trace element for humans and is an indispensable component for many enzyme systems, Cu can also act as a toxic metal to which a number of pathogenic characteristics have been attributed.14 Therefore, Cu contamination in tea leaves remains a concern, and researches should be done to ensure food safety from excessive Cu contamination.The determination of trace elements in human hair is of basic importance considering that the concentrations of these elements in hair can indicate the levels of these elements in the organism. Therefore, the determination of the metal contents in human hair can be used either as the index of the exposition for potentially toxic elements (poisoning) or as the information of the conditions of health of an individual. 15The accurate and sensitive determinations...

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Solid phase extraction and preconcentration of cobalt in mineral waters with PAR-loaded Amberlite XAD-7 and flame atomic absorption spectrometry

Cited by 29 publications

References 19 publications

Analysis of Some Trace Metals in Fish Species after Preconcentration with Congo Red on Amberlite XAD-7 Resin by Flame Atomic Absorption Spectrometry

Analysis of Some Trace Metals in Fish Species after Preconcentration with Congo Red on Amberlite XAD-7 Resin by Flame Atomic Absorption Spectrometry

The Use of Fungal BiomassAgaricus bisporusImmobilized on Amberlite XAD-4 Resin for the Solid-Phase Preconcentration of Thorium

Determination of copper in human hair and tea samples after dispersive liquid-liquid microextraction based on solidification of floating organic drop (DLLME-SFO)

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