Journal ArticleDOI
Automation and optimization of solid-phase microextraction
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TLDR
The solid phase microextraction (SPME) technique as mentioned in this paper involves exposing a fused silica fiber that has been coated with a stationary phase to and aqueous solution containing organic contaminants.Abstract:
The solid-phase microextraction (SPME) technique involves exposing a fused silica fiber that has been coated with a stationary phase to and aqueous solution containing organic contaminants. The analytes partition into the stationary phase until an equilibrium has been reached, after which the fiber is removed from the solution and the analytes are thermally desorbed in the injector of a gas chromatographread more
Citations
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Journal ArticleDOI
Determination of chlorpyrifos in environmental water samples by dispersive liquid-liquid microextraction with solidification of a floating organic drop followed by gas chromatography with flame photometry detection
Jianfei Xiong,Jianfei Xiong,Zhuo Guan,Guangming Zhou,Xiangyu Tang,Yujuan Lv,Yujuan Lv,Honglan Wang,Honglan Wang +8 more
TL;DR: In this paper, a mixture of 1.5 mL of methanol and 40 mu L of 1-dodecanol was quickly injected into 25 mL of a water sample with a liquid-transferring device.
Journal ArticleDOI
Modelling SPME data from kinetic measurements in complex samples
TL;DR: The kinetics of the partition process to solid phase microextraction fibres is often modelled using a stagnant layer model, but in this present study an alternative approach is introduced, where transport from the bulk medium to the fibre coating is simply modelled by a finite mass transfer coefficient instead of diffusion through a stagnant water layer surrounding the fibre.
Journal ArticleDOI
Miniaturisation: a well-defined trend in separation and preconcentration techniques
TL;DR: An overview of the state-of-the-art on miniaturisation concerning the different types of separation techniques is presented and the shortcomings encountered in the development of these techniques are discussed.
Journal ArticleDOI
Analysis of chlorinated 1,3-butadienes by solid-phase microextraction and gas chromatography-mass spectrometry
TL;DR: In this paper, the linearity and the sensitivity of the absorption of hexachloro-1,3-butadiene were verified in the range 0.1-200 μg/l.
Journal ArticleDOI
Determination of BTEX in Water Samples with an SPME Hollow Fiber Coated Copper Wire
TL;DR: A piece of copper wire coated with a polypropylene hollow fiber membrane was used as an SPME fiber and its efficiency for extraction of BTEX compounds from the headspace of water samples prior to GC analysis was evaluated as discussed by the authors.
References
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Journal ArticleDOI
Solid phase microextraction with thermal desorption using fused silica optical fibers
Journal ArticleDOI
Dynamics of organic compound extraction from water using liquid-coated fused silica fibers
TL;DR: In this paper, the absorption and desorption processes of benzene, toluene, and p-xylene were described and compared with experimental results for solid-phase microextraction using poly(dimethylsiloxane)-coated fused silica optical fibers.
Journal ArticleDOI
Analysis of Substituted Benzene Compounds in Groundwater Using Solid-Phase Microextraction
TL;DR: In this paper, Solid Phase Microextraction (SPME) was applied to the analysis of benzene, toluene, ethyl benzene and xylenes in groundwater.
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The use of solid sorbents for direct accumulation of organic compounds from water matrices–a review of solid-phase extraction techniques
TL;DR: The main principles of solid phase extraction techniques are reviewed in this paper, and the main advantages of this method as compared to liquid-liquid extraction are given as well as some drawbacks.