Results 271 to 280 of about 528,026 (297)

The Role of Liquid-Phase Microextraction Techniques in Bioanalysis

Bioanalysis, 2015
Sample 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, Eugenia, Gallardo, João A, Queiroz   +2 more
openaire   +2 more sources

Hydrodistillation–liquid-phase microextraction for infrared analysis of food

Analytical and Bioanalytical Chemistry, 2010
A 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, Salvador, Garrigues, Sergio, Armenta, Miguel, de la Guardia   +3 more
openaire   +2 more sources

Application of ionic liquid in liquid phase microextraction technology

Journal of Separation Science, 2012
Ionic 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, Baokun, Tang, Yu Ri, Lee, Kyung Ho, Row   +3 more
openaire   +2 more sources

Liquid-phase microextraction and capillary electrophoresis of acidic drugs

Electrophoresis, 2000
Vial 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, Rasmussen, Knut Einar   +1 more
openaire   +2 more sources

A green and simple liquid-phase microextraction based on deep eutectic solvent for the erythrosine prior to its UV–VIS spectrophotometric detection

Journal of the Iranian Chemical Society, 2020
Zeliha Erbaş, M. Soylak
semanticscholar   +1 more source

Liquid-phase microextraction – The different principles and configurations

Trends in Analytical Chemistry (TrAC), 2019
Y. Yamini, M. Rezazadeh, Shahram Seidi
semanticscholar   +1 more source

Determination of selected antiretroviral drugs in wastewater, surface water and aquatic plants using hollow fibre liquid phase microextraction and liquid chromatography - tandem mass spectrometry.

Journal of Hazardous Materials, 2020
Nomchenge Yamkelani Mlunguza, Somandla Ncube, P. Mahlambi, L. Chimuka, L. Madikizela   +4 more
semanticscholar   +1 more source

Applications of (natural) deep eutectic solvents in liquid phase microextraction: A review

Microchemical journal (Print)
F. Mansour, Alaa Bedair, Mahmoud Hamed, Galal Magdy, Imran Ali, Marcello Locatelli   +5 more
semanticscholar   +1 more source

Insights into coacervative and dispersive liquid-phase microextraction strategies with hydrophilic media - A review.

Analytica Chimica Acta, 2020
Idaira Pacheco-Fernández, R. González-Martín, Francisca A. e Silva, M. Freire, V. Pino   +4 more
semanticscholar   +1 more source

Selecting an extraction solvent for a greener liquid phase microextraction (LPME) mode-based analytical method

Trends in Analytical Chemistry (TrAC), 2019
J. Kokosa
semanticscholar   +1 more source