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Microextraction by Packed Sorbent
Bioanalysis, 2015Microextraction by packed sorbent (MEPS) is a miniaturized form of SPE. MEPS can handle small sample volumes and be connected on-line with LC or GC without any modifications. In addition, the MEPS sorbent bed is integrated into an injection syringe and can be used for more than 100 extractions. The key aspect of MEPS is that the solvent volume used for
Mohammad Mahdi, Moein +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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Hollow fiber microextraction: a new hybrid microextraction technique for trace analysis
Analytical and Bioanalytical Chemistry, 2018A new hybrid microextraction technique (hollow fiber microextraction) is presented that uses the main concepts and advantages of the modern miniaturized devices used for trace analysis. This novel analytical approach uses devices made of polypropylene membranes (10.0 mm long and 0.6 mm internal diameter) in which convenient organic solvents are ...
Alessandra H, Ide +1 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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TrAC Trends in Analytical Chemistry, 2010
Abstract The development of faster, simpler, inexpensive and more environmentally-friendly sample-preparation techniques is an important issue in chemical analysis. Recent research trends involve miniaturization of the traditional liquid-liquid-extraction principle by greatly reducing the acceptor-to-donor ratio.
Ali Sarafraz-Yazdi, Amirhassan Amiri
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Abstract The development of faster, simpler, inexpensive and more environmentally-friendly sample-preparation techniques is an important issue in chemical analysis. Recent research trends involve miniaturization of the traditional liquid-liquid-extraction principle by greatly reducing the acceptor-to-donor ratio.
Ali Sarafraz-Yazdi, Amirhassan Amiri
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TrAC Trends in Analytical Chemistry, 1999
Abstract In recent years, much attention in analytical chemistry has been paid to sample preparation techniques, especially those which minimise the consumption of organic solvents. One of the most promising of these, solid-phase microextraction (SPME), is presented in both its theoretical and practical aspects.
Helena Prosen, Lucija Zupančič-Kralj
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Abstract In recent years, much attention in analytical chemistry has been paid to sample preparation techniques, especially those which minimise the consumption of organic solvents. One of the most promising of these, solid-phase microextraction (SPME), is presented in both its theoretical and practical aspects.
Helena Prosen, Lucija Zupančič-Kralj
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TrAC Trends in Analytical Chemistry, 2018
Abstract After its introduction just over twenty years ago, single-drop microextraction (SDME) became a widely applied solvent-based microextraction procedure as a practical sample preparation tool in support of chemical and biological, food, pharmaceutical, clinical and forensic analysis.
Sheng Tang +6 more
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Abstract After its introduction just over twenty years ago, single-drop microextraction (SDME) became a widely applied solvent-based microextraction procedure as a practical sample preparation tool in support of chemical and biological, food, pharmaceutical, clinical and forensic analysis.
Sheng Tang +6 more
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Single-Drop Microextraction in Bioanalysis
Bioanalysis, 2011Bioanalysis usually requires a preparation procedure for sample cleanup or preconcentration. Conventional sample preparation techniques are often time consuming and labor intensive. Among recent progress in sample preparation, single drop microextraction (SDME) is one of the most efficient techniques providing both sample cleanup and preconcentration ...
Kihwan, Choi, Jihye, Kim, Doo Soo, Chung
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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.
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Solid-Phase Microextraction Field Sampler
Analytical Chemistry, 2004To facilitate the use of solid-phase microextraction (SPME) for field sampling, a new field sampler was designed and tested. The sampler was versatile and user-friendly. The SPME fiber can be positioned precisely inside the needle for time-weighted average sampling or exposed completely outside the needle for grab sampling.
Yong, Chen, Janusz, Pawliszyn
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