Sequential stir bar sorptive extraction for uniform enrichment of trace amounts of organic pollutants in water samples

Ochiai, Nobuo; Sasamoto, Kikuo; Kanda, Hirooki; Pfannkoch, Edward A.

doi:10.1016/j.chroma.2008.05.069

Cited by 87 publications

(30 citation statements)

References 16 publications

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“…Several other developments using SBSE to analyze conventional environmental pollutants like pesticides [31,34,46], phenols [32,33,42], PAHs [41,45] [5] but new phases are important to enhance the extraction process, as shown by Huang et al [32] that developed a new phase (poly(vinylpyridine-ethylene dimethacrylate)) to extract polar phenols, concluding that this phase can also be applied to analyze other groups of polar analytes.…”

Section: Recent Applications Of Sbse For Environmental Analysismentioning

confidence: 97%

Recent developments and applications of stir bar sorptive extraction

Lanças¹,

Queiroz

Grossi

et al. 2009

J of Separation Science

133

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The theoretical aspects of stir bar sorptive extraction (SBSE), as well as the recent applications of this technique in pharmaceutical, biomedical, environmental, and food analysis, and recently developed new coating procedures are reviewed. A general overview of the important factors to be evaluated in the optimization of extraction efficiency such as extraction time, matrix pH, ionic strength, effect of organic additives, temperature, agitation, pre-extraction derivatization reactions, influence of proteins, and desorption conditions are discussed. An impressive number of applications using SBSE have been published in different areas including biological, environmental, and food, showing the advantages of this technique over the classical extraction techniques (liquid-liquid extraction (LLE), Soxhlet). Although the different SBSE applications use PDMS phase as sorbent, developments of new phases are necessary for specific applications. In this review, recent SBSE developments are shown with a focus on the development of new instrumental approaches and sorbent phases.

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Section: Recent Applications Of Sbse For Environmental Analysismentioning

confidence: 97%

Recent developments and applications of stir bar sorptive extraction

Lanças¹,

Queiroz

Grossi

et al. 2009

J of Separation Science

133

View full text Add to dashboard Cite

show abstract

“…After extraction the two stir bars are simultaneously desorbed and analysed by thermal desorption and GC -MS. Compared to conventional SBSE, sequential SBSE provides more uniform enrichment over the entire polarity/volatility range for pesticides at ultratrace levels in water [16].…”

Section: Introductionmentioning

confidence: 99%

“…However, hydrophilic compounds, with a low K ow , are recovered in low yield but which can be improved by adding a salt such as sodium sulphate to the sample. Sequential SBSE [14] solves this problem performing two extractions, with and without added salt, to optimize the separate recoveries of hydrophilic and hydrophobic compounds. The technique can be broadened by using two stir bars with different coatings [15] and by adding other modifiers to the second extraction to improve recoveries.…”

Section: Introductionmentioning

confidence: 99%

Sequential stir bar extraction, thermal desorption and retention time locked GC–MS for determination of pesticides in water

Sampedro¹,

Goicolea²,

Unceta³

et al. 2009

J of Separation Science

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A method based on sequential stir bar sorptive extraction followed by automated thermal desorption-GC-MS for the determination of pesticides in underground and superficial water samples has been developed. Retention time locked GC-MS and deconvolution Automated Mass Spectral Deconvolution and Identification System software allows the use of pesticide databases for identification and quantification in routine applications. Quantitation limits and repetitivity using full scan mass spectrometric determination guarantee the applicability of the method, which enables considerable savings to be made in total analysis time, with data processing times of around 2 min/sample.

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“…However, the strict experimental control and long equilibrium times limit their application. 15,16 At present, the membrane extraction method has become increasingly popular in aqueous sample preparation because of low solvent consumption, convenience, and suitability for automation. Membrane-assisted solvent extraction (MASE), which has been previously reported by Hauser et al, 17 is a promising technique for aqueous sample preparation.…”

Section: Introductionmentioning

confidence: 99%

Rapid analysis of pyrethroid insecticides in aquaculture seawater samples viamembrane-assisted solvent extraction coupled with gas chromatography-electron capture detection

Shi

Song

Sun

et al. 2012

Analyst

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A simple, efficient, and environmentally friendly membrane-assisted solvent extraction (MASE) method for the extraction and preconcentration of six pyrethroid insecticides from aquaculture seawater samples followed by gas chromatography-electron capture detection (GC-ECD) was successfully proposed. The operating conditions for MASE, such as the extraction solvent, solvent volume, NaCl concentration, stirring rate, extraction time, and temperature, were optimized. Compared to conventional Florisil-solid phase extraction (SPE), higher extraction recoveries (85.9% to 105.9%) of three spiked levels of the six pyrethroid pesticides in aquaculture seawater were obtained using MASE, and the RSD values were lower than 7.9%. The limits of detection (LOD, signal-to-noise ratio (S/N)¼3) and quantification (LOQ, S/N ¼ 10) were in the range of 0.037-0.166 and 0.12-0.55 mg L À1 , respectively. The results demonstrate the excellent applicability of the MASE method in analyzing the six pyrethroid pesticides in aqueous samples. The proposed method exhibited a high potential for routine monitoring analysis of pyrethroid insecticides in seawater samples.

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Sequential stir bar sorptive extraction for uniform enrichment of trace amounts of organic pollutants in water samples

Cited by 87 publications

References 16 publications

Recent developments and applications of stir bar sorptive extraction

Recent developments and applications of stir bar sorptive extraction

Sequential stir bar extraction, thermal desorption and retention time locked GC–MS for determination of pesticides in water

Rapid analysis of pyrethroid insecticides in aquaculture seawater samples viamembrane-assisted solvent extraction coupled with gas chromatography-electron capture detection

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