Results 131 to 140 of about 9,099 (177)
Some of the next articles are maybe not open access.
Ferrofluid-based liquid-phase microextraction
Journal of Chromatography A, 2010A new mode of liquid-phase microextraction based on a ferrofluid has been developed. The ferrofluid was composed of silica-coated magnetic particles and 1-octanol as the extractant solvent. The 1-octanol was firmly confined within the silica-coated particles, preventing it from being lost during extraction.
Shi, Z.-G., Zhang, Y., Lee, H.K.
openaire +2 more sources
Chemical reactions in liquid-phase microextraction
Journal of Chromatography A, 2009In recent years, liquid-phase microextraction (LPME), a microscale implementation of liquid-liquid extraction, has become a very popular sample pretreatment technique because it combines extraction and enrichment, and is inexpensive, easy to operate and nearly solvent-free.
Li, Xu +2 more
openaire +2 more sources
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
openaire +2 more sources
Developments in liquid-phase microextraction
TrAC Trends in Analytical Chemistry, 2003Abstract The development of faster, simpler, inexpensive and more environmentally friendly sample-preparation techniques is an important issue in chemical analysis. Recent research trends involve miniaturisation of the traditional liquid-liquid extraction (LLE) principle by greatly reducing the acceptor-to-donor phase ratio.
E. Psillakis, N. Kalogerakis
openaire +1 more source
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
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
Ionic liquids in solid-phase microextraction: A review
Analytica Chimica Acta, 2011Solid-phase microextraction (SPME) has undergone a surge in popularity within the field of analytical chemistry in the past two decades since its introduction. Owing to its nature of extraction, SPME has become widely known as a quick and cost-effective sample preparation technique.
Tien D, Ho +2 more
openaire +2 more sources
Solid drop based liquid-phase microextraction
Journal of Chromatography A, 2010Solid drop based liquid-phase microextraction (SDLPME) is a novel sample preparation technique possessing obvious advantages of simple operation with a high pre-concentration factor, low cost and low consumption of organic solvent. SDLPME coupled with gas chromatography (GC), high-performance liquid chromatography (HPLC), and atomic absorption ...
Mohammad Reza, Ganjali +5 more
openaire +2 more sources
Liquid phase microextraction applications in food analysis
Journal of Chromatography A, 2011Over the last years, liquid-phase microextraction (LPME) in its different application modes (single drop microextraction, dispersive liquid-liquid microextraction and hollow fiber-LPME) has been increasingly applied for the extraction of both inorganic and organic analytes from different matrices. Its advantages over conventional extraction procedures (
María, Asensio-Ramos +3 more
openaire +2 more sources
Liquid-Phase Microextraction in Bioanalytical Sample Preparation
Bioanalysis, 2009Liquid-phase microextraction (LPME) emerged in the mid-to-late 1990s, facing up to the main shortcomings of the classical liquid-liquid extraction. Since its origin, this new technique has been in continuous development driven by its successful and widespread use in the analytical sciences. Its inherent properties, such as low sample volume requirement,
Rafael, Lucena +3 more
openaire +2 more sources