Results 251 to 260 of about 528,026 (297)
Some of the next articles are maybe not open access.
Successive liquid-phase microextraction of acidic and basic analytes
Analytica Chimica Acta, 2022Practical biological and environmental samples always contain both acidic and basic substances, and the samples are always precious. Thus, separation of analytes with different nature from the same sample was of great significance. Successive liquid phase microextraction (sLPME) of acidic and basic analytes under optimal extraction conditions was ...
Ruiqin, Zhu +5 more
openaire +2 more sources
Pharmaceutical applications of liquid-phase microextraction
TrAC Trends in Analytical Chemistry, 2018Abstract Despite the significant advances in analytical equipment, measuring drugs in biological fluids, metabolic studies and determining their therapeutic range and side effects requires a sample preparation step, which is due to the low concentration of the drug and/or the complexity of the sample matrix.
Shahram Seidi +2 more
openaire +1 more source
2017
Liquid-phase microextraction (LPME) has emerged over the last 15–20 years as one of the simplest and most easily implemented techniques of sample preparation in the determination of organic analytes in a variety of matrices. This article summarizes the historical developments and various modes of the technique, method development, recent trends, and ...
openaire +2 more sources
Liquid-phase microextraction (LPME) has emerged over the last 15–20 years as one of the simplest and most easily implemented techniques of sample preparation in the determination of organic analytes in a variety of matrices. This article summarizes the historical developments and various modes of the technique, method development, recent trends, and ...
openaire +2 more sources
International Journal of Environmental Analytical Chemistry, 2019
The parabens, which are harmful to our bodies, are primarily utilized as preservatives in medicine, personal care products and cosmetics. A novel, more efficient, fast and cheap vortex-assisted liquid phase microextraction method based on deep eutectic ...
Sezen Sivrikaya
semanticscholar +1 more source
The parabens, which are harmful to our bodies, are primarily utilized as preservatives in medicine, personal care products and cosmetics. A novel, more efficient, fast and cheap vortex-assisted liquid phase microextraction method based on deep eutectic ...
Sezen Sivrikaya
semanticscholar +1 more source
Dynamic headspace time-extended helix liquid-phase microextraction
Journal of Chromatography A, 2009Liquid-phase microextraction (LPME) has been proved to be a fast, inexpensive and effective sample pre-treatment technique for the analyses of pesticides and many other compounds. In this investigation, a new headspace microextraction technique, dynamic headspace time-extended helix liquid-phase microextraction (DHS-TEH-LPME), is presented.
Shih-Pin, Huang +2 more
openaire +2 more sources
Reduction of extraction times in liquid-phase microextraction
Journal of Chromatography B: Biomedical Sciences and Applications, 2001Recently, we introduced a simple and inexpensive disposable device for liquid-phase microextraction (LPME) based on porous polypropylene hollow fibres. In the present paper, extraction times were significantly reduced by an increase in the surface of the hollow fibres.
Grønhaug Halvorsen, Trine +2 more
openaire +3 more sources
Dynamic hollow fiber-supported headspace liquid-phase microextraction
Journal of Chromatography A, 2005With the increasing concern over deteriorating environmental quality, the analysis of organic pollutants in air, water, and soil has become critically important. The development of simple, efficient, and inexpensive analytical sample pretreatment is crucial for monitoring and evaluating the environment.
Xianmin, Jiang +3 more
openaire +2 more sources
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
openaire +2 more sources
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
semanticscholar +1 more source
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
semanticscholar +1 more source
Analytical Chemistry, 2019
This article reports for the first time a programmable-flow based mesofluidic platform that accommodates an electric field-driven liquid phase microextraction (µ-EME) in a fully automated mode. The miniaturized system is composed of a computer-controlled
Enrique Javier Carrasco-Correa +3 more
semanticscholar +1 more source
This article reports for the first time a programmable-flow based mesofluidic platform that accommodates an electric field-driven liquid phase microextraction (µ-EME) in a fully automated mode. The miniaturized system is composed of a computer-controlled
Enrique Javier Carrasco-Correa +3 more
semanticscholar +1 more source