Researchers from Sun Yat-sen University and South China Normal University (both in Guangzhou, China) developed a sample preparation method for extracting the beta-blockers propranolol, atenolol, pindolol, and alprenolol from human plasma and urine samples.
Researchers from Stockholm University (Stockholm, Sweden) and Nankai University (Tianjin, China) used a serial mixed-mode cation-exchange and anion-exchange solid-phase extraction (SPE) method to extract 15 basic, neutral, and acidic pharmaceutical compounds from wastewater.
A research group from the University of Tehran (Tehran, Iran) used dispersive liquid?liquid microextraction coupled with gas chromatography to determine compounds in rose water, which is the hydrosol portion of the distillate of rose petals.
Scientists from the Swedish University of Agricultural Sciences (Uppsala, Sweden) and the University of Tabriz (Tabriz, Iran) developed a single-step solid-phase extraction (SPE) method to completely separate sterol oxidation products in food lipids.
Researchers from Universidad de Santiago de Compostela (Santiago de Compostela, Spain) developed a dispersive liquid-liquid microextraction sample preparation method to determine the antibacterial agent triclosan and its environmental transformation product methyl triclosan in water samples.
A research group from the South China University of Technology (Guangzhou, Guangdong, China) and the Georgia Institute of Technology (Atlanta, Georgia) used a full evaporation headspace gas chromatography method to determine ethanol in fermentation liquor.
Researchers from the University of the Basque Country (Bilbao, Spain) have compared two extraction techniques as preparation methods for analyzing organic pollutants polycyclic aromatic hydrocarbons, polychlorinated biphenyls, phthalate esters, nonylphenols, polybrominated biphenyls, and polybrominated diphenyl ethers in water samples.
Researchers from the Swedish University of Agricultural Sciences (Uppsala, Sweden) and the University of Tabriz (Tabriz, Iran) developed a solid-phase extraction method to separate sterol oxidation products in food lipids for analysis by gas chromatography (GC) and GC?mass spectrometry.
Pressure Biosciences, Inc. (South Easton, Massachusetts) has entered into an exclusive patent license agreement with the Battelle Memorial Institute (Columbus, Ohio.
Hypercrosslinked polystyrene-type (solid-phase extraction) SPE materials exhibit a unique ability to enter p-interactions with aromatic, heterocyclic and unsaturated compounds. This property permits selective extraction and pre-concentration of the above classes of species from non-polar media and fatty matrices. The principle has been exploited for developing analytical protocols to determine polar furan derivatives in mineral transformer oil, polyaromatic hydrocarbons (PAHs) in smoked fish and for the fractionation of polychlorinated aromatic compounds in environmental matrices.
Researchers at Universidade Federal de Santa Maria (Santa Maria, Brazil) and Centro de Pesquisas e Desenvolvimento Leopold Americo Miguez de Mello-CENPES/PETROBAS (Rio de Janeiro, Brazil) analyzed chloride in petroleum coke samples using microwave-induced combustion followed by ion chromatography.
Researchers from National Chung Hsing University (Taichung, Taiwan) analyzed four chlorophenols in aqueous samples using purge-assisted headspace solid-phase microextraction (SPME) followed by gas chromatography?mass spectrometry (GC?MS).
A research group from LMTAI (La Rochelle, France) and LVMH Recherche (St. Jean de Braye Cedex, France) analyzed the oligosaccharides ciceritol and stachyose extracted from Tephrosia purpurea seeds using an instant controlled pressure drop pretreatment before solvent extraction.
A researcher from Shagrao Normal University (Shangrao, Jiangxi Province, China) used solid-phase microextraction (SPME) followed by gas chromatography?mass spectrometry (GC?MS) to analyze volatile organic compounds (VOCs) in cigarette smoke.
Scientists from INIA (Madrid, Spain) used ultrasonic-assisted extraction followed by liquid chromatography with triple-quadrupole mass spectrometry detection (LC?MS) to analyze paraben compounds in environmental solid samples.
A highly sensitive analytical method for the analysis of tamsulosin in human plasma has been developed for use in bioanalytical studies. The solid-phase extraction (SPE) and UPLC–MS–MS methodologies are described, as well as performance against validation parameters.
Columnist Ron Majors discusses some of the practical considerations in the successful application of the popular yet age-old technique of solvent extraction (also known as liquid–liquid extraction, or LLE).
Researchers from National Tsing Hua University (Hsinchu, Taiwan) developed a dispersive liquid?liquid microextraction (DLLME) method based on solidification of a floating organic drop and combined it with gas chromatography with either electron-capture or mass spectrometry detection.
A research group from the University of La Laguna and ICIA (both in La Laguna, Tenerife, Canary Islands, Spain) used multiwalled carbon nanotubes as a solid-phase extraction (SPE) medium for extracting eight organophosphorus pesticides from various commercial apple, grape, orange, and pineapple juices.
Researchers from the University of Barcelona (Barcelona, Spain) and Arboriculura Mediterranea Mas de Bover (Tarragona, Spain) implemented a factorial experimental design in developing a solid-phase microextraction (SPME)?gas chromatography (GC)?mass spectrometry (MS) method to analyze volatile phenols in virgin olive oils.
Scientists from Lanzhou University (Lanzhou, China) developed an automated on-line method for determining substituted aniline compounds that consisted of in-tube solid-phase microextraction (SPME) with oxidized multiwalled carbon nanotubes coated on the outside surface of the SPME fiber, which was inserted into PEEK tubing attached to a six-port injection valve.
Researchers from Hebei University and Baoding University (both in Baoding, China) used water-compatible molecularly imprinted polymers as a sorbent for solid-phase extraction (SPE) of nine quinolones from urine samples.
An alphabetical listing of all 2008 LCGC articles by author and subject.
Tecan Group (Männedorf, Switzerland), a supplier of advanced automation and detection systems for life science laboratories, has opened its new Asia Pacific region headquarters in Shanghai, China.
Agilent Technologies (Santa Clara, California) and BioTrove (Woburn, Massachusetts) have signed a nonexclusive value-added reseller agreement that enables BioTrove to provide instrumentation for mass spectrometry?based drug discovery.
