Results 211 to 220 of about 61,447 (248)
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Solvent Microextraction into a Single Drop
Analytical Chemistry, 1996An analytical technique is described which combines solvent extraction with gas chromatographic (GC) analysis in a simple and inexpensive apparatus involving very little solvent consumption. A small drop (8 μL) of a water-immiscible organic solvent, containing an internal standard, is located at the end of a Teflon rod which is immersed in a stirred ...
M A, Jeannot, F F, Cantwell
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Microextraction with Phases Containing Nanoparticles
Bioanalysis, 2015In this article, the state of the art of microextraction techniques that involve nanoparticles or nanomaterials (NPs) is reviewed, with special emphasis on the applications described in the biomedical field. The uses and advantages of the different types of NPs such as carbon nanotubes (either single- and multi-walled) and other carbon-based materials,
Rodrigo A, González-Fuenzalida +6 more
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Developments in single-drop microextraction
Journal of Chromatography A, 2007Single-drop microextraction (SDME) has become a very popular liquid-phase microextraction technique because it is inexpensive, easy to operate and nearly solvent-free. Essentially, SDME combines extraction (and conceivably, cleanup) and concentration in a minimum number of steps, and thereafter, direct extract introduction into an analytical system. In
Li, Xu +2 more
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Sol−Gel Capillary Microextraction
Analytical Chemistry, 2002Sol-gel capillary microextraction (sol-gel CME) is introduced as a viable solventless extraction technique for the preconcentration of trace analytes. To our knowledge, this is the first report on the use of sol-gel-coated capillaries in analytical microextraction.
Shaun, Bigham +5 more
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2001
Solid Phase Microextraction (SPME) uses a small volume of sorbent dispersed typically on the surface of small fibres, to isolate and concentrate analytes from sample matrix. After contact with sample, analytes are absorbed or adsorbed by the fibre phase (depending on the nature of the coating) until an equilibrium is reached in the system.
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Solid Phase Microextraction (SPME) uses a small volume of sorbent dispersed typically on the surface of small fibres, to isolate and concentrate analytes from sample matrix. After contact with sample, analytes are absorbed or adsorbed by the fibre phase (depending on the nature of the coating) until an equilibrium is reached in the system.
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Green microextraction methodologies for sample preparations
Green Analytical Chemistry, 2022John M Kokosa, Andrzej Przyjazny
exaly
Green aspects, developments and perspectives of liquid phase microextraction techniques
Talanta, 2014Łukasz Marcinkowski +2 more
exaly
Advances in solvent-microextraction techniques
TrAC - Trends in Analytical Chemistry, 2013John M Kokosa
exaly
Liquid-phase microextraction – The different principles and configurations
TrAC - Trends in Analytical Chemistry, 2019Yadollah Yamini +2 more
exaly