Isolation and preconcentration of Cd(II) from environmental samples using polypropylene porous membrane in a hollow fiber renewal liquid membrane extraction procedure and determination by FAAS

Luciano, Raquel Medeiros; Bedendo, Gizelle Cristina; Carletto, Jeferson Schneider; Carasek, Eduardo

doi:10.1016/j.jhazmat.2009.12.070

Cited by 32 publications

(13 citation statements)

References 24 publications

(28 reference statements)

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“…During the past few decades, modern sample preparation methods such as solid-phase extraction (SPE) [1,2], solidphase microextraction (SPME) [3,4], matrix solid-phase dispersion (MSPD) [5,6], membrane-assisted solvent extraction (MASE) [7,8], microporous polypropylene hollow fiber (HF) membranes [9,10] and stir-bar sorptive extraction (SBSE) [11,12] have been developed and improved to overcome drawbacks of the classical liquidliquid extraction methods. SPME is a powerful, simple, fast and solvent-free extraction method, which solves a number of problems confronting the analyst during sampling and introducing the sample into analytical instruments [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

et al. 2012

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An inside-needle extraction method was developed through thermal polymerization of atrazinemolecularly imprinted polymer (MIP) on the internal surface of a stainless steel hollow needle, which was oxidized and silylated. The fabricated coating (MIP layer) for the needle was durable and showed very good chemical and thermal stability. It could be mounted on a glass syringe and be directly coupled with gas chromatographic (GC) systems. The parameters being effective on the coating and extraction processes, namely nature of oxidizing agent, silylation time, nature and amount of porogen, template-to-MIP components ratio, polymerization time and temperature, sample volume, flow rate, pH and ionic strength of the sample were investigated and optimized. The extraction needle showed high selectivity as well as a great extraction capacity for triazines. The extraction of atrazine, simazine, cyanazine, ametryn, prometryn and terbutryn using the fabricated extraction needle and followed by GC analysis resulted in detection limits of 2.6, 21, 24, 32, 38 and 42 ng mL -1 , respectively. The fabricated needle proved to be applicable to the analysis of real samples by comparing the results obtained for non-spiked and spiked samples of grape juice, tap water and groundwater.

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Section: Introductionmentioning

confidence: 99%

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

et al. 2012

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“…An additional organic phase in the donor phase is necessary only for the renewal, and continuously replenishes the loss of membrane liquid due to its solubility and emulsification to avoid liquid membrane degradation. On the other hand, the resistance of back-extraction on the lumen side of the membrane can be greatly reduced by chemical reactions [14].…”

Section: Introductionmentioning

confidence: 99%

A simple hollow fiber renewal liquid membrane extraction method for analysis of sulfonamides in honey samples with determination by liquid chromatography–tandem mass spectrometry

Bedendo

Jardim

Carasek

2010

Journal of Chromatography A

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“…Thiol-functionalized ionic liquid for highly selective extraction of Cd(II) was also reported by Wang et al [20]. A variety of sensitive and selective analytical techniques have been used for the determination of trace cadmium in different samples [21][22][23][24][25]. The aim of the present work was thus to develop a new method for cadmium determination with ionic liquid-based HF-SLME.…”

Section: Introductionmentioning

confidence: 70%

Ionic liquid-based hollow fiber supported liquid membrane extraction combined with thermospray flame furnace AAS for the determination of cadmium

Zeng

Hu²,

Luo

2011

Microchim Acta

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We have developed a simple and effective method for hollow fiber liquid-phase microextraction of cadmium. It is based on the use of a room temperature ionic liquid (RTIL) and was coupled to thermospray flame furnace AAS. The RTIL was placed in the pores of a polypropylene hollow fiber (acting as a liquid membrane) and also used as the acceptor solution. Ammonium pyrrolidinedithiocarbamate (APDC) was used as the chelating agent. The effects of the concentration of APDC, the pH of samples, stirring rates, extraction time, and potential interferences were optimized to result in a detection limit of 9 ng L −1 and an enrichment factor of 90. The relative standard deviation is 4.7% (at 0.5 ng mL −1 , for n05). The method was successfully applied to the determination of cadmium.

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Isolation and preconcentration of Cd(II) from environmental samples using polypropylene porous membrane in a hollow fiber renewal liquid membrane extraction procedure and determination by FAAS

Cited by 32 publications

References 24 publications

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC–FID Determination

A simple hollow fiber renewal liquid membrane extraction method for analysis of sulfonamides in honey samples with determination by liquid chromatography–tandem mass spectrometry

Ionic liquid-based hollow fiber supported liquid membrane extraction combined with thermospray flame furnace AAS for the determination of cadmium

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