Results 271 to 280 of about 7,149,709 (340)
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Cyclodextrin-based sorbents for solid phase extraction.
Journal of Chromatography A, 2020Cyclodestrins (CDs) are cyclic oligosaccharides well-known for their ability to form host-guest inclusion complexes with properly sized compounds. They have been used for decades as chiral selectors as well as drug delivery systems within the frameworks ...
A. Gentili
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Solid-phase extraction in clinical biochemistry
Annals of Clinical Biochemistry: International Journal of Laboratory Medicine, 2002In order to measure low concentrations of analytes in plasma and urine, it is often necessary to extract and concentrate them. With solid-phase extraction (SPE), this is achieved by partitioning the analytes between a solid and a liquid or headspace vapour.
Walker, Valerie, Mills, Graham A.
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Recent application of magnetic solid phase extraction for food safety analysis
Trends in Analytical Chemistry (TrAC), 2019Magnetic solid-phase extraction (MSPE), an emerging sample pretreatment technique, has received much attention because of its environment friendliness, rapid separation process, excellent adsorption efficiency, and easily automated assay.
Hailong Jiang +4 more
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Solid-phase extraction of acidic herbicides
Journal of Chromatography A, 2000A discussion of solid-phase extraction method development for acidic herbicides is presented that reviews sample matrix modification, extraction sorbent selection, derivatization procedures for gas chromatographic analysis, and clean-up procedures for high-performance liquid chromatographic analysis.
M J, Wells, L Z, Yu
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Trends in Analytical Chemistry (TrAC), 2019
Despite the significant advances in analytical instruments, applying a sample preparation step before the final analysis has a great deal of importance. This fact is attributed to the complexity of the sample matrices and the existence of the analytes at
Shahram Seidi +3 more
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Despite the significant advances in analytical instruments, applying a sample preparation step before the final analysis has a great deal of importance. This fact is attributed to the complexity of the sample matrices and the existence of the analytes at
Shahram Seidi +3 more
semanticscholar +1 more source
2000
Introduction to Solid-Phase Extraction, N.J.K. Simpson and M.J.M. Wells SPE Sorbents and Formats, J.J. Pesek and M.T. Matyska The Sample Matrix and Its Influence on Method Development, N.J. K. Simpson and P.M. Wynne Handling Large Volume Samples: Applications of SPE to Environmental Matrices, M.J.M.
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Introduction to Solid-Phase Extraction, N.J.K. Simpson and M.J.M. Wells SPE Sorbents and Formats, J.J. Pesek and M.T. Matyska The Sample Matrix and Its Influence on Method Development, N.J. K. Simpson and P.M. Wynne Handling Large Volume Samples: Applications of SPE to Environmental Matrices, M.J.M.
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Solid-Phase Extraction in Segmented Flow
Langmuir, 2014Two-phase flow systems are increasingly popular for miniaturized, high-throughput performance of analytical or chemical reactions. In this contribution, we extend a previously described method that allows to increase the range of applications of heterogeneous reactions in two-phase flow, i.e., reactions that rely on isolation and purification of the ...
Rendl, Martin +2 more
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Critical reviews in food science and nutrition, 2020
The presence of antibiotic residues in foodstuff has been of growing concern in recent years. They are associated with several adverse effects on human health such as the transmission of antibiotic-resistant pathogenic bacteria through the contaminated ...
S. A. Khatibi +2 more
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The presence of antibiotic residues in foodstuff has been of growing concern in recent years. They are associated with several adverse effects on human health such as the transmission of antibiotic-resistant pathogenic bacteria through the contaminated ...
S. A. Khatibi +2 more
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Solid-phase extraction of soy isoflavones
Journal of Chromatography A, 2005An automated method using solid-phase extraction (SPE) for the concentration and clean-up of soy isoflavone extracts is proposed in this work. Using a standardized sample (0.1 g of a freeze dried soybean extract/25 mL of water); eight SPE cartridges with a wide range of sorbents (C18, divinylbenzene and modified divinylbenzene) from different suppliers
Mauricio A, Rostagno +2 more
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Journal of Supercritical Fluids, 2019
The tetrahydrocannabinol (THC) was obtained from Cannabis sativa L. plant material using supercritical fluid extraction (SFE) and solid phase extraction (SPE). SFE was utilized at different pressures (15–33 MPa), temperatures (40–80 °C) and ethanol (EtOH)
Ada C. Gallo-Molina +6 more
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The tetrahydrocannabinol (THC) was obtained from Cannabis sativa L. plant material using supercritical fluid extraction (SFE) and solid phase extraction (SPE). SFE was utilized at different pressures (15–33 MPa), temperatures (40–80 °C) and ethanol (EtOH)
Ada C. Gallo-Molina +6 more
semanticscholar +1 more source