Stir bar sorptive extraction: Recent applications, limitations and future trends

Camino-Sánchez, F.J.; Rodríguez-Gómez, R.; Zafra-Gómez, A.; Santos-Fandila, A.; Vı́lchez, J.L.

doi:10.1016/j.talanta.2014.07.022

Cited by 146 publications

(58 citation statements)

References 84 publications

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“…Despite the many advantages, still there are limitations that must be overcome, like the automation of liquid desorption, the impossibility of direct analysis of the complex matrix such as soil, and the control of coating status after several extraction. SBSE has not the best precisions preconcentration factor when compared to other extraction techniques such as Magnetic nanoparticle .…”

Section: Resultsmentioning

confidence: 92%

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Sol–gel coating of poly(ethylene glycol)‐grafted multiwalled carbon nanotubes for stir bar sorptive extraction and its application to the analysis of polycyclic aromatic hydrocarbons in water

Amlashi

Hadjmohammadi

2016

J of Separation Science

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Poly(ethylene glycol) grafted onto carboxyl-terminated multi-walled carbon nanotubes were prepared by the sol-gel technique as a stationary phase for stir bars. The analytical methodology included stir bar sorptive extraction with micellar desorption followed by liquid chromatography. Polycyclic aromatic hydrocarbons were used as the model compounds to evaluate the extraction performance. The extraction efficiency, for the determination of polycyclic aromatic hydrocarbons from water samples, was optimized based on a chemometrics approach. The effect of the experimental parameters on the extraction response was investigated and the optimum extraction conditions were selected. Under the optimum conditions, the proposed method showed a good linearity within the different ranges for different analytes (e.g. 0.05-500 ng/mL for phenanthrene), a square of the correlation coefficient was higher than 0.999, and an appropriate limit of detection in the range of 0.013-0.072 ng/mL. The recoveries in all cases were above 94%, with relative standard deviations below 2.4%.

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Section: Resultsmentioning

confidence: 92%

“…Cracking of the coating is the main drawback during preparation sol–gel process in SBSE. For this problem, pre and post‐treatment of the stir bar could be effective .…”

Section: Methodsmentioning

confidence: 99%

Sol–gel coating of poly(ethylene glycol)‐grafted multiwalled carbon nanotubes for stir bar sorptive extraction and its application to the analysis of polycyclic aromatic hydrocarbons in water

Amlashi

Hadjmohammadi

2016

J of Separation Science

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“…Furthermore, in order to increase extraction capacity, dual-phase/hybrid coatings were also used for plants in recent years [81]. A number of studies demonstrated the feasibility of SBSE for the extraction of analytes from environmental and food matrices, and discussed the advantages of SBSE [82][83][84].…”

Section: Other Static Spmementioning

confidence: 99%

Advances in different configurations of solid-phase microextraction and their applications in food and environmental analysis

Wang

Li³

et al. 2015

TrAC Trends in Analytical Chemistry

105

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“…in 1999 , and commercialized by Gerstel (Muelheim an der Ruhr, Germany) with PDMS coating as the first and most applied coating. Since its introduction, this technique has been extensively applied in environmental, food, and biological research before instrumental analysis . Due to hydrophobic nature of PDMS‐based stir bars, there was a limitation on the application of polar compound extraction.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a novel sorptive stir bar based on vinylpyrrolidone‐ethylene glycol dimethacrylate monolithic polymer for the simultaneous extraction of diazepam and nordazepam from human plasma

Torabizadeh

Talebpour

Adib

et al. 2016

J of Separation Science

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A new monolithic coating based on vinylpyrrolidone-ethylene glycol dimethacrylate polymer was introduced for stir bar sorptive extraction. The polymerization step was performed using different contents of monomer, cross-linker and porogenic solvent, and the best formulation was selected. The quality of the prepared vinylpyrrolidone-ethylene glycol dimethacrylate stir bars was satisfactory, demonstrating good repeatability within batch (relative standard deviation < 3.5%) and acceptable reproducibility between batches (relative standard deviation < 6.0%). The prepared stir bar was utilized in combination with ultrasound-assisted liquid desorption, followed by high-performance liquid chromatography with ultraviolet detection for the simultaneous determination of diazepam and nordazepam in human plasma samples. To optimize the extraction step, a three-level, four-factor, three-block Box-Behnken design was applied. Under the optimum conditions, the analytical performance of the proposed method displayed excellent linear dynamic ranges for diazepam (36-1200 ng/mL) and nordazepam (25-1200 ng/mL), with correlation coefficients of 0.9986 and 0.9968 and detection limits of 12 and 10 ng/mL, respectively. The intra- and interday recovery ranged from 93 to 106%, and the relative standard deviations were less than 6%. Finally, the proposed method was successfully applied to the analysis of diazepam and nordazepam at their therapeutic levels in human plasma. The novelty of this study is the improved polarity of the stir bar coating and its application for the simultaneous extraction of diazepam and its active metabolite, nordazepam in human plasma sample. The method was more rapid than previously reported stir bar sorptive extraction techniques based on monolithic coatings, and exhibited lower detection limits in comparison with similar methods for the determination of diazepam and nordazepam in biological fluids.

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Stir bar sorptive extraction: Recent applications, limitations and future trends

Cited by 146 publications

References 84 publications

Sol–gel coating of poly(ethylene glycol)‐grafted multiwalled carbon nanotubes for stir bar sorptive extraction and its application to the analysis of polycyclic aromatic hydrocarbons in water

Sol–gel coating of poly(ethylene glycol)‐grafted multiwalled carbon nanotubes for stir bar sorptive extraction and its application to the analysis of polycyclic aromatic hydrocarbons in water

Advances in different configurations of solid-phase microextraction and their applications in food and environmental analysis

Preparation of a novel sorptive stir bar based on vinylpyrrolidone‐ethylene glycol dimethacrylate monolithic polymer for the simultaneous extraction of diazepam and nordazepam from human plasma

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