Preconcentration system for cadmium and lead determination in environmental samples using polyurethane foam/Me-BTANC

Gama, Ednilton Moreira; Lima, Alisson Padilha de; Lemos, Valfredo Azevedo

doi:10.1016/j.jhazmat.2006.01.015

Cited by 98 publications

(46 citation statements)

References 29 publications

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“…The equilibrium data of Cd (II) and Pb (II) ions adsorption onto Amberlite XAD-8 resin were obtained with the Langmuir isotherm equation and the adsorption capacity of the Amberlite XAD-8 resin, without any lost of its physical-chemical features and adsorption properties, were evaluated as 3.76 mg g -1 and 5.07 mg g -1 , respectively. The data obtained from the proposed method have been also compared with the previously reported SPE methods [31][32][33][34][35][36] in terms of some optimization parameters ( Table 6). The distinguished features of the present work are that the RSD and LOD values are relatively low, the working pH near to neutral and the preconcentration factor is relatively high when compared to other methods.…”

Section: Discussionmentioning

confidence: 99%

SOLID PHASE EXTRACTION OF Cd(II) AND Pb(II) IONS BY A NEW CARBOTHIOAMIDE DERIVATIVE

Özdeş

Duran

Bayrak

et al. 2013

J. Chil. Chem. Soc.

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An effective, simple, low cost and accurate sorption-spectrophotometric platform for the extractions and subsequent quantifications of Cd(II) and Pb(II) ions in food and environmental samples has been described in this dissertation. The separation and preconcentration of the analyte ions were accomplished by solid phase extraction method based on the adsorption of their N-(4-methylphenyl)-2-{[(4-phenyl-5-pyridin-4-yl-4H-1,2,4-triazol-3-yl)thio]acetyl} hydrazinecarbothioamide (MFPTAHK) complex on Amberlite XAD-8 resin in a mini column. The developed method was systematically investigated in different set of experimental parameters that influence the separation and preconcentration of Cd(II) and Pb(II) ions. The precision of the method was determined by reproducibility studies and expressed as relative standard deviations (RSD %) which were less than 4% for both analyte ions. The limits of detections (LODs) for Cd(II) and Pb(II) ions based on the three times the standard deviation of the blanks (N:10) were found to be 0.31 µg L -1 and 0.86 µg L -1 , respectively. The developed SPE procedure was utilized for the simultaneous extraction and determinations of Cd(II) and Pb(II) ions levels in rice, cracked wheat and red lentil as food samples and various water samples.

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Section: Discussionmentioning

confidence: 99%

SOLID PHASE EXTRACTION OF Cd(II) AND Pb(II) IONS BY A NEW CARBOTHIOAMIDE DERIVATIVE

Özdeş

Duran

Bayrak

et al. 2013

J. Chil. Chem. Soc.

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“…The chelating resins can be used in flow injection system with various detection methods like FAAS, ICP-AES, spectrophotometry, chemiluminescence and ICP-MS etc [26].There are various chelating resins have recently been used such as polyurethane foam [27][28][29][30][31][32][33][34][35], cellulose, silica gel [36][37][38][39][40][41][42], alumina [43][44][45][46][47][48], chitosan [49][50][51], carbon active [52] and polymeric resins like Amberlite etc. Amberlite XAD resins widely used to develop several chelating materials for preconcentration procedures due to its good physical and chemical properties such as porosity, high surface area, durability and purity.…”

Section: Applications Of Chelating Resins Based On Amberlite Xad mentioning

confidence: 99%

Applications of Amberlite XAD based Chelating resins in Online Pre concentration of metal ions

Meena¹,

Saxena²

2017

IOSR JAC

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“…For Br-TAO preparation, a modified procedure was performed, based on the synthesis of similar reagents [22,23]. 2-Amino-5-bromothiazole (2.0 g) was dissolved in 50 mL of a 6.0 mol L −1 hydrochloric acid solution at 0-5 • C. A solution of 0.53 g of sodium nitrite in 20 mL of water was added dropwise.…”

Section: Synthesis Of the 4-(5 -Bromo-2 -Thiazolylazo) Orcinol (Br-tao)mentioning

confidence: 99%

Use of Functionalized Resin for Matrix Separation and Trace Elements Determination in Petroleum Produced Formation Water by Inductively Coupled Plasma Mass Spectrometry

Santelli

Freire

Oliveira

et al. 2012

ISRN Analytical Chemistry

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This work approaches the development of a procedure for separation and determination of five trace metals (Co, Cd, Pb, Ni, and Cu) from petroleum produced formation water. This procedure uses a styrene divinyl-benzene polymeric resin modified with 4-(5 -bromo-2 -tiazolilazo) orcinol, and the determination was performed by inductively coupled plasma mass spectrometry. A response surface methodology using a Doehlert matrix was used to optimize the solid-phase extraction of the studied elements. By using 50.0 mL of sample solution for separation/preconcentration, limits of quantification of 2.4, 14, 10, 11, and 350 ng L −1 were obtained for Co, Cd, Pb, Ni, and Cu, respectively. The developed procedure was applied for determination of these trace elements in produced formation water from offshore platforms in the Brazilian Northeast.

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Preconcentration system for cadmium and lead determination in environmental samples using polyurethane foam/Me-BTANC

Cited by 98 publications

References 29 publications

SOLID PHASE EXTRACTION OF Cd(II) AND Pb(II) IONS BY A NEW CARBOTHIOAMIDE DERIVATIVE

SOLID PHASE EXTRACTION OF Cd(II) AND Pb(II) IONS BY A NEW CARBOTHIOAMIDE DERIVATIVE

Applications of Amberlite XAD based Chelating resins in Online Pre concentration of metal ions

Use of Functionalized Resin for Matrix Separation and Trace Elements Determination in Petroleum Produced Formation Water by Inductively Coupled Plasma Mass Spectrometry

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