New Materials for Solid‐Phase Extraction of Trace Elements

Lemos, Valfredo Azevedo; Teixeira, Leonardo Sena Gomes; Bezerra, Marcos Almeida; Costa, Antônio Celso Spı́nola; Castro, Jaelson; Cardoso, Luiz Augusto Martins; Jesus, Djane Santiago de; Santos, Elenir Souza; Baliza, Patrícia Xavier; Santos, Leonardo Nazário Silva dos

doi:10.1080/05704920802031341

Cited by 159 publications

(51 citation statements)

References 145 publications

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“…MWCNTs are proposed as a sorbent in an off-line SPE method for the determination of antidepressants using LC and UV detection (Bakker & Qin, 2006). MWCNTs have been applied as adsorbents for preconcentration of sulfonylurea herbicides (Lemos et al, 2008;Zhou Q. et al, 2006aZhou Q. et al, , 2007, bisphenol A, 4-n-nonylphenol, 4-tert-octylphenol (Cai et al, 2003a), dichlorodiphenyltrichloroethane and its metabolites (Zhou Q. et al, 2006b); atrazine, simazine (Zhou Q. et al, 2006c), and trihalomethanes (Lu et al, 2005) in environmental water samples, barbiturates determination in pork (Zhao H. et al, 2007), for simultaneous determination of 10 sulfonamides in eggs and pork (Fang et al, 2006), for trapping volatile organic compounds in a purge-and trap GC system (Li Q. et al, 2004), to extract diethylphthalate, di-n-propyl-phthalate, di-iso-butyl-phthalate, and di-cyclohexylphthalate from aqueous solutions (Cai et al, 2003b).…”

Section: Cnts In Chemical Sensingmentioning

confidence: 99%

Carbon Nanotubes – Imprinted Polymers: Hybrid Materials for Analytical Applications

Cirillo¹,

Hampel²,

Puoci³

et al. 2012

Materials Science and Technology

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Section: Cnts In Chemical Sensingmentioning

confidence: 99%

Carbon Nanotubes – Imprinted Polymers: Hybrid Materials for Analytical Applications

Cirillo¹,

Hampel²,

Puoci³

et al. 2012

Materials Science and Technology

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“…SPE has specific advantages, including simplicity, reliability, good metal loading capacity, and the ability to obtain high enrichment factors [12,13]. Versatile systems have been obtained by applying solid supports loaded or functionalized with complexing reagents [14][15][16].…”

Section: Introductionmentioning

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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“…Among wide range of solid adsorbents, such as chelating resins, silica gel, carbon sorbents, inorganic based sorbents, biological adsorption material and nanomaterials [5,[15][16][17][18], silica gel bonded chelating ligands has gained much more importance for metal ion enrichment for its definite advantages, such as good mechanical strength, no swelling and straining, good thermal stability and convenient chemical modification [19].…”

Section: Introductionmentioning

confidence: 99%

Polyelectrolyte Modified Silica Gel Micro-Column Solid Phase Extraction for the Determination of Silver in Environmental Water Samples by Flame Atomic Absorption Spectrometry

Xiang

Jiang

et al. 2013

J. Chil. Chem. Soc.

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Silica gel was chemically modified with polyelectrolyte and used as a solid phase extraction adsorbent for the determination of trace silver in environmental water samples by flame absorption spectrometry (FAAS). The effects of pH, sample flow rate and volume, elution conditions and co-existing ions on the recovery of the analyte were investigated. The results showed that silver could be adsorbed at pH 5.0 and eluted by 5.0 mL 2% thiourea in HNO 3 (0.1 mol L -1 ). Under the optimized conditions, the adsorption capacity of modified silica gel was found to be 8.6 mg g -1 for silver. The detection limit of the proposed method was 1.0 ng mL -1 for silver with an enrichment factor of 18.7. The analytical result for the certified reference water sample (GBW08610) was in a good agreement with the certified value. The proposed method has also been successfully applied to the determination of trace silver in drinking water, well water, snow water and waste water with the recoveries for spiked samples between 94% and 105%.

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New Materials for Solid‐Phase Extraction of Trace Elements

Cited by 159 publications

References 145 publications

Carbon Nanotubes – Imprinted Polymers: Hybrid Materials for Analytical Applications

Carbon Nanotubes – Imprinted Polymers: Hybrid Materials for Analytical Applications

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

Polyelectrolyte Modified Silica Gel Micro-Column Solid Phase Extraction for the Determination of Silver in Environmental Water Samples by Flame Atomic Absorption Spectrometry

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