Liquid Chromatography - University of Florida
liquid chromatography is popular in sample purification and in the removal of interferences from sample. It is also used in some analytical applications, but this is not as common due to its low efficiency, long analytical time, and poor limits of detection. 7. High-performance liquid chromatography (HPLC) is a term that
Tags:
Liquid, Purification, Chromatography, Liquid chromatography
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document:
Documents from same domain
Fluid Flow in Packed Beds - University of Florida
cao.chem.ufl.eduFluid Flow in Packed Beds: 1. Flow in a packed bed involves a complex pattern of solvent traveling in and around spaces in the support materials, through channels or pores of various sizes and shapes. 2. The basic structure of a packed bed is made up of three regions (a) Flowing mobile phase: the solvent which is flowing freely
Diffusion and Fluid Flow - University of Florida
cao.chem.ufl.eduC. Fluid flow in open tubes: 1. Flow of a solvent through a circular tube can be one of three types (a) plug flow, (b) turbulent flow, or (c) laminar flow. 2. The type of flow expected in a given system can be determined by using the Reynolds number (Re): the ratio of inertial force and viscous force Re = ρ u dp/η Where: ρ = solvent density ...
Chromatography Band-Broadening (rate theory)
cao.chem.ufl.eduB. Theoretical measures of band-broadening: 1. In chromatographic theory, the width of a peak is usually described in terms of H, the high equivalent of a theoretical plate, H = L/n L = colume length N= number of theoretical plates = (tR/σ)2 tR= retention time of the solute σ=standard deviation of the peak (in time units)
Plate, Rates, Theoretical, Number, Theory, Band, Chromatography, Number of theoretical plates, Broadening, Chromatography band broadening, Rate theory
Supercritical Fluid Chromatography - University of Florida
cao.chem.ufl.eduRefractive Index Detector (10-5to 10-6M) Absorption Detector (UV/Vis) (10-8M) Fluorescence Detector (10-10M) Conductivity Detector (10-6M) Electrochemical Detector (10-11M) GC detectors: d. Depending on which supercritical fluid is used, it is also possible to use SFC at lower T than GC. This makes it more useful in the
Fluid, Index, Chromatography, Supercritical, Supercritical fluid chromatography
Related documents
ETHYL ACETATE: PROPERTIES, PRODUCTION PROCESSES AND ...
www.ijcrr.comEthyl acetate is an important organic solvent widely used in the chemical industry. This review ... the purification is straightforward and the catalysts are very stable. The third one, which has been recently ... silica-alumina, alumina-boria, sodium …
Liquid Filtration Solutions - Entegris
www.entegris.comLiquid Filtration and Purification Core Capabilities For more than 50 years, Entegris has developed ... of-tool filtration solutions specially design for organic solvent and aggressive solvent applications, as well as DI water, and ... very fine alumina slurries. • Low hold-up volume design with minimal dead space that
Review of Extraction Techniques - arcjournals.org
www.arcjournals.orgsolvent extraction both the liquids i.e. the feed and solvent forms a homogenous mixture and are ... purification of vitamin products in Pharmaceutical Industry; essential in improvement of lube oil ... Alumina Irregular particles, 60/325 Mesh Adsorption Phase
Experiment 6 — Thin-Layer Chromatography
www.amherst.eduthin layer of a solid — the most common are silica (SiO2) or alumina (Al2O3). This is the stationary phase. The mobile phase is an organic solvent or solvent mixture. The sample mixture is applied near the bottom of the plate as a small spot, …
CHEM 344 Thin Layer Chromatography
www2.chem.wisc.eduTLC, one phase is a mobile liquid solvent phase and the other phase is a stationary solid phase with a high surface area. The stationary phase normally consists of a finely divided adsorbent, silica (SiO 2) or alumina (Al 2O 3) powder, used in the form of a thin layer (about 0.25 mm thick) on a supporting material.
The principle of TGA and its applications: TGA is ...
www.sctce.ac.inare silica gel and alumina gel. The mobile phase is a liquid which is continuously added to the top of column and flows down the column due to the action of gravity. Sample (Components A+B) to be separated is dissolved in a suitable solvent and introduced to the top of the stationary phase.
Introduction and Principles of Gas Chromatography
www.esclab-algerie.com• In splitless injection some solvent condensation is required to create the ”solvent” effect . • This solvent will trap (= focus) compounds and makes sure that a narrow band is formed. • Realization: Oven temperature during injection must be 20°C below the Bp of the solvent. Solvent-Focusing in splitless injection
Introduction, Principles, Chromatography, Solvents, Introduction and principles of gas chromatography
Solvent Drying - University of Pittsburgh
ccc.chem.pitt.eduAug 12, 2010 · the alumina: samples of THF that had been passed over the alumina were evaporated to dryness with no significant residue remaining. TABLE 1. Water Content in THF after Dryinga desiccant time (h) residual water content (ppm) none, “wet” solvent 107.8( 0.7 sodium/benzophenoneb 48 43.4( 0.7 3A˚ molecular sieves (10% m/v) 24 27.7( 1.0
Thin Layer Chromatographic Analyses
infohost.nmt.eduCHEM 333L Organic Chemistry Laboratory Revision 1.3 Thin Layer Chromatographic Analyses In this laboratory exercise we will analyze a commercial pain reliever to determine the identity
Adsorption (Ch 12) - mass transfer to an interface
www.che.uri.eduAdsorption (Ch 12) - mass transfer to an interface (Absorption - mass transfer to another phase)• Gas or liquid adsorption (molecular) onto solid surface – Porous solids provide high surface area per weight (porous nanoparticles are ideal) • Gas applications (adsorption a function of P & T, gases condense in pores)
Transfer, Interface, Mass, Adsorption, Ch 21, Mass transfer to an interface