Results 221 to 230 of about 635,398 (265)
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Dynamic headspace liquid-phase microextraction of alcohols
Journal of Chromatography A, 2005A method was developed using dynamic headspace liquid-phase microextraction and gas chromatography-mass spectrometry for extraction and determination of 9 alcohols from water samples. Four different solvents, hexyl acetate, n-octanol, o-xylene and n-decane were studied as extractants.
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Journal of Chromatography A, 2019
A novel approach for stir membrane liquid phase microextraction of tetracyclines from biological fluids was developed. The microextraction procedure assumed in situ formation of microdroplets of a hydrophobic medium-chain fatty acid (extraction solvent ...
S. Lebedinets +5 more
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A novel approach for stir membrane liquid phase microextraction of tetracyclines from biological fluids was developed. The microextraction procedure assumed in situ formation of microdroplets of a hydrophobic medium-chain fatty acid (extraction solvent ...
S. Lebedinets +5 more
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Deep eutectic solvents in liquid-phase microextraction: contribution to green chemistry
Trends in Analytical Chemistry (TrAC), 2021L. Santos +5 more
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Trends in Analytical Chemistry (TrAC), 2019
Liquid phase microextraction (LPME) has been widely used in extraction and preconcentration systems as an excellent alternative to conventional liquid phase extraction.
V. Lemos +5 more
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Liquid phase microextraction (LPME) has been widely used in extraction and preconcentration systems as an excellent alternative to conventional liquid phase extraction.
V. Lemos +5 more
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The Role of Liquid-Phase Microextraction Techniques in Bioanalysis
Bioanalysis, 2015Sample preparation is one of the most challenging tasks in laboratories, particularly in what concerns biological specimens, since they cannot be directly analyzed. A considerable amount of time and effort is spent in the extraction of the analytes and their concentration in a solvent that is compatible with analytical instrumentation.
Mário, Barroso +2 more
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Microchemical journal (Print), 2018
This document describes a microextraction technique using a porous polypropylene hollow fiber for the analysis of 27 emerging contaminants (ECs) in water samples by means of liquid chromatography-tandem mass spectrometry. The ECs under study were aniline,
V. C. Salvatierra-Stamp +3 more
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This document describes a microextraction technique using a porous polypropylene hollow fiber for the analysis of 27 emerging contaminants (ECs) in water samples by means of liquid chromatography-tandem mass spectrometry. The ECs under study were aniline,
V. C. Salvatierra-Stamp +3 more
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Microchemical journal (Print), 2018
A switchable hydrophilicity solvent (SHS) based liquid phase microextraction (LPME) method was proposed for the preconcentration of trace Pb (II) and Cd (II) followed by graphite furnace atomic absorption spectrometry (GFAAS) detection.
Si Zhang, Beibei Chen, M. He, Bin Hu
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A switchable hydrophilicity solvent (SHS) based liquid phase microextraction (LPME) method was proposed for the preconcentration of trace Pb (II) and Cd (II) followed by graphite furnace atomic absorption spectrometry (GFAAS) detection.
Si Zhang, Beibei Chen, M. He, Bin Hu
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Trends in Analytical Chemistry (TrAC), 2018
Liquid-phase microextraction (LPME) techniques are widely used for sample preparation in a number of analytical determinations involving different matrices.
E. Carasek +3 more
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Liquid-phase microextraction (LPME) techniques are widely used for sample preparation in a number of analytical determinations involving different matrices.
E. Carasek +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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Food Chemistry, 2018
A novel liquid-phase microextraction based on the ferrofluid was successfully applied for the extraction and determination of four phenolic compounds (bisphenol-A, bisphenol-AF, tetrabromobisphenol-A and 4-tert-octylphenol) in milks and fruit juices.
Dezhi Yang +3 more
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A novel liquid-phase microextraction based on the ferrofluid was successfully applied for the extraction and determination of four phenolic compounds (bisphenol-A, bisphenol-AF, tetrabromobisphenol-A and 4-tert-octylphenol) in milks and fruit juices.
Dezhi Yang +3 more
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