ChromatographicAdsorbentsPurificationExtractionIsothermsPreparativeElutionDiffusionProcessesAnalyticalAnalyteThermalResinsSilicaStationary phaseSeparationCatalyticOrganicMechanismPrinciplesLiquidCompoundsTemperaturesMassChemicalHighTypesSystemsTechniquePhysicalAnalysisStudyModelTechnologyLargeRelease
Chromatographic3
- They established the principles and basic techniques of partition chromatography, and their work encouraged the rapid development of several chromatographic methods: paper chromatography, gas chromatography, and what would become known as high-performance liquid chromatography. (wikipedia.org)
- Dual flow chromatography (DFC) separations are performed with back and forth flow for rapid method development, design of experiments (DOE), quality-by-design (QbD), or high-throughput chromatographic purification. (chromatographyonline.com)
- Although different than conventional unidirectional flow through chromatography, chromatographic principles still control the separations. (chromatographyonline.com)
Adsorbents3
- Commonly used methods for isolating volatile components from natural sources include thermal desorption or vapor collection by cryogenic concentration or by adsorption on solid adsorbents, direct solvent extraction (e.g. (biomedcentral.com)
- Purification can be carried out by the adsorption method using solid adsorbents, for example natural zeolite and activated carbon. (gnest.org)
- Chromatography on thin layers of adsorbents rather than in columns. (lookformedical.com)
Purification2
- The purpose of preparative chromatography is to separate the components of a mixture for later use, and is thus a form of purification. (wikipedia.org)
- Sup Eng is now equipped locally in Nancy-France with a versatile pilot plant operating up to 1 000 bar and 200°C and designed for supercritical fluid extraction, sterilization, purification by adsorption / desorption, drying, reaction and particle formation . (supercriticalfluid.net)
Extraction7
- 6. Supercritical extraction, p-T phase diagram, critical parameters, physical and chemical properties of supercritical fluids. (vscht.cz)
- 7. Devices for supercritical extraction, fractionation, mathematical models of supercritical extraction, free diffusion model. (vscht.cz)
- Sure it will be a nice place to continue the development of innovative and efficient large scale environment respectful applications using #HighPressure #SupercriticalFluid #Extraction #ContinuousFractionation #PrepSFC #Adsorption #Membrane #Reaction #Sterilization Processes. (supercriticalfluid.net)
- Steam distillation/drop-by-drop extraction with gas chromatography-mass spectrometry for fast determination of volatile components in jujube (Ziziphus jujuba Mill. (biomedcentral.com)
- A method coupling steam distillation/drop-by-drop extraction with gas chromatography-mass spectrometry (S3DE/GC-MS) was developed to determine the volatile components of jujube extract. (biomedcentral.com)
- This study has been focused on the comparison of the application of Thermal Desorption (TD) and Supercritical Fluid Extraction (SFE) methods for the identification and quantification of organic chemicals in house dust samples. (gnest.org)
- The aim of current study was to evaluate the polycyclic aromatic hydrocarbons (PAHs) concentration and probabilistic health risk in vegetables and fruits samples of Tehran city, Iran during 2018-2019 using magnetic solid-phase extraction (MSPE)and gas chromatography-mass spectrometry(GC-MS).The limit of detection (LOD) and limit of quantitation (LOQ) ranged 0.040-0.084 and 0.121-0.253 μg/kg, respectively. (gnest.org)
Isotherms2
- 8. Adsorption and chromatography, adsorption isotherms, adsorption in stirred vessels. (vscht.cz)
- Selectivity coefficients and Langmuir adsorption isotherms control the separation chemistry properties of the column and dictate the mobile phase conditions needed to achieve separation. (chromatographyonline.com)
Preparative1
- Chromatography may be preparative or analytical. (wikipedia.org)
Elution1
- Eluent (sometimes spelled eluant) - the solvent or solvent fixure used in elution chromatography and is synonymous with mobile phase. (wikipedia.org)
Diffusion1
- Also, the practice of comparing CB patterns in environmental samples with those of technical mixtures can be misleading since mixtures emanating from different sources are mixed at differing rates by diffusion, evaporation, and adsorption onto solids. (cdc.gov)
Processes5
- New types of chromatography developed during the 1930s and 1940s made the technique useful for many separation processes. (wikipedia.org)
- It will also give us the experimental data to implement our new process simulation software built for supercritical processes simulation and scale up. (supercriticalfluid.net)
- Living systems are full of interfaces and they have adopted to regulate adsorption/ desorption processes. (lu.se)
- Chemical constituents (cations, anions, trace elements, organic carbon, humic acid, and stable isotopes) in both fluids and mud were analyzed to investigate the geochemical processes and spatial variability among the mud volcanoes under consideration. (edu.au)
- Considerable amounts of arsenic in mud irrespective of fluid composition suggested possible release through biogeochemical processes in the subsurface environment. (edu.au)
Analytical3
- Analytical chromatography is done normally with smaller amounts of material and is for establishing the presence or measuring the relative proportions of analytes in a mixture. (wikipedia.org)
- Analytical chromatography - the use of chromatography to determine the existence and possibly also the concentration of analyte(s) in a sample. (wikipedia.org)
- Analytical results suggested that the anoxic mud volcanic fluids are highly saline, implying connate water as the probable source. (edu.au)
Analyte2
- Analyte - the substance to be separated during chromatography. (wikipedia.org)
- When SPME is coupled to gas chromatography (SPME-GC), the IL- or PIL-based sorbent materials must be capable of withstanding the high operating temperatures of the GC injector (250-280 °C) during analyte desorption (5). (chromatographyonline.com)
Thermal2
- Thermal desorption and vapor collection are unreproducible and prone to artifacts, especially when working in the ppm range [ 12 ]. (biomedcentral.com)
- The thermal desorption unit used cryo - focusing on capillary tubing and was connected to a GC-MS combination. (gnest.org)
Resins1
- This review's highlight is the recovery of lactic acid by adsorption technique using ion-exchange resins with a brief focus on the potential of in-site separation strategies alongside the important factors that influenced the lactic acid recovery process by ion exchange. (springeropen.com)
Silica1
- Chromatography (e.g., gel permeation, silica gel, Florisil, activated carbon, high-performance liquid) is often used to remove matrix interferences, and sometimes to fractionate PCBs into several groups. (cdc.gov)
Stationary phase7
- The mixture is dissolved in a fluid solvent (gas or liquid) called the mobile phase, which carries it through a system (a column, a capillary tube, a plate, or a sheet) on which a material called the stationary phase is fixed. (wikipedia.org)
- Because the different constituents of the mixture tend to have different affinities for the stationary phase and are retained for different lengths of time depending on their interactions with its surface sites, the constituents travel at different apparent velocities in the mobile fluid, causing them to separate. (wikipedia.org)
- Chromatography - a physical method of separation that distributes components to separate between two phases, one stationary (stationary phase), the other (the mobile phase) moving in a definite direction. (wikipedia.org)
- Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix. (lookformedical.com)
- A mobile phase (fluid or gas) passes through a column containing a stationary phase of porous solid or liquid coated on a solid support. (lookformedical.com)
- It is commonly used as a desiccating agent and as a stationary phase for CHROMATOGRAPHY. (lookformedical.com)
- Gas chromatography analysis was performed with a Hewlett-Packard-5890 gas chromatograph with an FID detector and a 30-m capillary column with a dimethylpolysiloxane stationary phase. (ommegaonline.org)
Separation4
- In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components. (wikipedia.org)
- He developed the technique and coined the term chromatography in the first decade of the 20th century, primarily for the separation of plant pigments such as chlorophyll, carotenes, and xanthophylls. (wikipedia.org)
- Advances are continually improving the technical performance of chromatography, allowing the separation of increasingly similar molecules. (wikipedia.org)
- A method of gel filtration chromatography using agarose, the non-ionic component of agar, for the separation of compounds with molecular weights up to several million. (lookformedical.com)
Catalytic1
- Due to their exceptional porosities and large surface areas, MOFs possess superior adsorption, reactivity, and catalytic abilities, making them structurally ideal candidates for the capture and decomposition of target species. (preprints.org)
Organic2
- Volcanic mud and fluids are rich in organic matter (in terms of organic carbon), and the presence of humic acid in mud has implications for the binding of arsenic. (edu.au)
- Because arsenate concentration in the mud fluids was found to be independent from geochemical factors, it was considered that organic matter may induce arsenic mobilization through an adsorption/desorption mechanism with humic substances under reducing conditions. (edu.au)
Mechanism1
- Chromatography on non-ionic gels without regard to the mechanism of solute discrimination. (lookformedical.com)
Principles1
- Researchers found that the main principles of Tsvet's chromatography could be applied in many different ways, resulting in the different varieties of chromatography described below. (wikipedia.org)
Liquid1
- In this contribution, a new method based on the application of comprehensive two-dimensional liquid chromatography coupled to a diode array detector and tandem mass spectrometry has been developed to obtain the typical phenolic profile of Malbec grapes cultivated in Brazil. (bvsalud.org)
Compounds1
- A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds. (lookformedical.com)
Temperatures1
- To investigate how the results obtained by SFE and TD of house dust compare to one another and whether the SFE has advantages over the TD method, an aliquot of a house dust sample has been subjected to desorption at successively increasing temperatures. (gnest.org)
Mass1
- Gas chromatography-mass spectrometry (GC-MS) is typically employed to analyze volatile components in flavorings. (biomedcentral.com)
Chemical1
- 3. Multivariate linear regression analysis of the adsorptions of bensulfuron-methyl by each soils shows that were interrelated to the physical and chemical characteristics of the soils. (tymago.com)
High1
- Sup Eng recently built and installed in its lab a new sapphire cell system for full media visualization and for thermodynamic measurements in supercritical fluids and in high pressure conditions. (supercriticalfluid.net)
Types1
- A total of 14 samples are classified into three types of mercury intrusion/extrusion curves, indicative of pores with a well-developed adsorption-seepage structure, with poor connection, and alternately those that are adsorption-dominated. (acs.org)
Systems1
- 9. Adsorption in packed-bed systems, models of adsorption with and without axial dispersion, effective velocity of movement of species. (vscht.cz)
Technique1
- Chromatography technique developed substantially as a result of the work of Archer John Porter Martin and Richard Laurence Millington Synge during the 1940s and 1950s, for which they won the 1952 Nobel Prize in Chemistry. (wikipedia.org)
Physical1
- In the present study, immobilisation of Candida rugosa (CRL) lipase onto amino-activated mica is performed via covalent bonding (namely Amino-CRL) and the cross-linking of lipases into nano-reactors through physical adsorption (namely NER-CRL). (researchgate.net)
Analysis2
- Cleanup by chromatography has been used extensively to separate the non- ortho and the mono- ortho CBs from the remaining congeners before quantitative analysis (Hess et al. (cdc.gov)
- Characterization and analysis across the scales is by X-ray computed topography (CT), mercury intrusion porosimetry (MIP), N2 adsorption/desorption [Brunauer-Emmett-Teller (BET)], and nuclear magnetic resonance (NMR). (acs.org)
Study1
- The present study deals with geochemical characterization of mud fluids and sediments collected from Kunshuiping (KSP), Liyushan (LYS), Wushanting (WST), Sinyangnyuhu (SYNH), Hsiaokunshui (HKS) and Yenshuikeng (YSK) mud volcanoes in southwestern Taiwan. (edu.au)
Model1
- 10. Parameterization of equilibrium model of adsorption without the axial dispersion, linear equilibrium, desorption with nonlinear equilibrium, shock wave. (vscht.cz)
Technology2
- Supercritical Fluid Technology and Engineering. (supercriticalfluid.net)
- Sup Eng - Supercritical Fluid Technology and Engineering. (supercriticalfluid.net)
Large1
- The large pressure drop across the valve will result in a partial vaporization of the fluid. (northwestern.edu)
Release1
- The dispersions were fully characterized by means of differential scanning calorimetry and broadband dielectric spectroscopy, and the drug release profile was measured in a simulated body fluid. (ibecbarcelona.eu)