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Nanoparticle-enhanced liquid-phase microextraction
TrAC Trends in Analytical Chemistry, 2015Abstract Nanostructured materials play roles in different areas of analytical chemistry. Implementation of nanomaterials in liquid-phase microextraction results in a synergic combination yielding enhanced performance. Some significant examples include: carbon nanotubes for improving extraction efficiency; magnetic nanoparticles for retrieving ionic ...
Carlos Bendicho +3 more
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Hollow Fiber Liquid-Phase Microextraction
2012This chapter discusses hollow fiber liquid-phase microextraction (LPME). The chapter comprises a short discussion of the basic setup and principles for LPME, and the historical development. The theory of LPME is also discussed including equations for extraction recoveries and extraction kinetics.
Gjelstad, A. +2 more
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Development and evaluation of plunger-in-needle liquid-phase microextraction
Journal of Chromatography A, 2014In this work, a novel, simple and fast one-step liquid-phase microextraction (LPME) approach, termed plunger-in-needle LPME was developed. In this method, the stainless steel plunger wire of a commercially available plunger-in-needle microsyringe was simply etched by immersion in hydrofluoric acid to form a microporous structure, and was used as the ...
Zhang, H., Ng, B.W.L., Lee, H.K.
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Application of liquid‐phase microextraction to the analysis of plant and herbal samples
Phytochemical Analysis, 2020AbstractIntroductionThe analysis of plant and herbal samples is a challenging task for analytical chemists due to the complexity of the matrix combined with the low concentration of analytes. In recent years different liquid‐phase microextraction (LPME) techniques coupled with a variety of analytical equipment have been developed for the determination ...
Alina Diuzheva +6 more
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Application of ionic liquid in liquid phase microextraction technology
Journal of Separation Science, 2012Ionic liquids (ILs) are novel nonmolecular solvents. Their unique properties, such as high thermal stability, tunable viscosity, negligible vapor pressure, nonflammability, and good solubility for inorganic and organic compounds, make them excellent candidates as extraction media for a range of microextraction techniques.
Dandan, Han +3 more
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Hydrodistillation–liquid-phase microextraction for infrared analysis of food
Analytical and Bioanalytical Chemistry, 2010A combination of hydrodistillation (HD) and liquid-phase microextraction (LPME) has been successfully developed to improve sensitivity and selectivity in attenuated total reflection (ATR) infrared determination of semivolatile organic compounds from high water content plant and food matrices contributing to solve extraction efficiency drawbacks. The HD
Ana, Gonzálvez +3 more
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Kinetic Calibration for Automated Headspace Liquid-Phase Microextraction
Analytical Chemistry, 2005The kinetics of the absorption and desorption of analytes for headspace liquid-phase microextraction (HS-LPME) were studied. It was found that the desorption of analytes from the extraction phase into the sample matrix is isotropic to the absorption of the analytes from the sample matrix into the extraction phase under the same conditions.
Gangfeng, Ouyang +2 more
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Liquid-phase microextraction and capillary electrophoresis of acidic drugs
Electrophoresis, 2000Vial liquid-phase microextraction (LPME) combined with capillary electrophoresis (CE) was evaluated for the determination of the acidic drugs ibuprofen, naproxen, and ketoprofen present in water samples and in human urine. The 2.5 mL samples containing the drugs were filled into conventional vials and subsequently acidified by 250 microL of 1-10 M HCl.
Pedersen-Bjergaard, Stig +1 more
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Food and beverage applications of liquid-phase microextraction
TrAC Trends in Analytical Chemistry, 2018Abstract Integrated instrumental platforms based on a variety of techniques have been developed to establish the chemical composition of foods and to ensure their authenticity and safety following foodomics strategies. Usually, both sample cleanup and analyte enrichment must be designed prior to instrumental analysis, because foods present a diverse ...
Natalia Campillo +3 more
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