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Showing 1 to 20 of 1193 for “"Liquid Chromatography"”.
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Microbore columns in liquid chromatography
… for their application to High Performance Liquid Chromatography. Microbore columns consist of stainless steel tubing, 1/16¹¹ OD x 1mm ID, packed with silica gel or other suitable material. These columns were evaluated in terms of extra-column variance effects, mass sensitivity, and solvent …
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Preparative high performance liquid chromatography
A balanced density slurry-packing apparatus was developed and used to pack sixteen HPLC columns having different lengths and internal diameters with 10 µm Lichrosorb Sl-100. The evaluation of these columns led to several conclusions: the column efficiency, expressed in plates per meter, is a …
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Thermodynamic Measurements by Gas-Liquid Chromatography
… large scale continuous and semi-continuous gas liquid chromatographs (G.L.C.) in operation in this department by using analytical G.L.C. equipment. A commercial dual-channel chromatograph was modified to enable the partition coefficients of various solutes in polymer stationary phases to be …
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Packed capillary columns for liquid chromatography
… of packed capillary columns for high performance liquid chromatography are examined. Historically, the advantages are smaller sample and phase consumption, enhancement in sensitivity, easy column synthesis, higher obtainable efficiency, and easier interfacing to other techniques. These points are …
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Capillary Liquid Chromatography Using Micro Size Particles
… be realized using small particles (~ 1 µm) in liquid chromatography (LC). However, due to the large pressure drop caused by small particles, conventional LC pumping systems cannot satisfy the pressure requirements needed to drive the mobile phase through the column. Use of ultrahigh pressure, …
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Development of a detection technique for liquid chromatography and microbore liquid chromatography using tris(2,2'-bipyridyl)ruthenium(II) electrogenerated chemiluminescence
… the development of a detection technique for liquid chromatography (LC) and microbore LC using tris(2,2$\sp\prime$-bipyridyl)ruthenium(II) (Ru(bpy)$\sb3\sp{2+}$) electrogenerated chemiluminescence (ECL). This detection technique has proven to be valuable in detecting a wide variety of …
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Synthetic Chiral Stationary Phases in Enantioselective Liquid Chromatography
The occurrence of $\pi - \pi$ face to face and $\pi - \pi$ face to edge interactions on a particular type of chiral stationary phase (CSP) used for chromatographic separations of enantiomers has been studied. Highly polarizable aromatic substituents, such as halogens, have been found to enhance …
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The separation of diastereoisomers by gas-liquid chromatography
… esters of 2 1 3-butanediol and (5) á,â-Diols. Chromatography was performed at various temperatures and a variety of stationary phases was used. Capillary columns were used for chromatography of series 1 and 2 whereas packed columns were used for series 3 to 5. It was found that for all of the …
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Part I. Gas-Liquid Chromatography of Volatile Inorganic Fluorides. Part Ii. Thermodynamics of Solution of Selected Metal-Halides via Gas-Liquid Chromatography
Made available in DSpace on 2014-12-09T17:35:39Z (GMT). No. of bitstreams: 1 6706609.pdf: 5155754 bytes, checksum: 94053fbf7ac95db9da78811322a704a6 (MD5) Previous issue date: 1966
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Investigation of resveratrol metabolism using liquid chromatography-mass spectrometry.
Investigation of resveratrol metabolism using liquid chromatography-mass spectrometry.
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Design of Liquid Chromatography Systems for Capture and Purification
… Purdue University, December 2014. Design of liquid chromatography systems for capture and purification. Major Professor: Nien-Hwa Linda Wang.</p>
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Design of Liquid Chromatography Systems for Capture and Purification
… Purdue University, December 2014. Design of liquid chromatography systems for capture and purification. Major Professor: Nien-Hwa Linda Wang.
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Liquid chromatography-mass spectrometry, an evolution in doping analysis
… are thermal labile and can not be detected. Liquid chromatography hyphenated with mass spectrometry (LC-MS) does not require a derivatisation step. This analytical technique was introduced in the doping laboratories during the nineties. The first application of LC-MS described in this work …
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on-Line Liquid Chromatography/fast Atom Bombardment Mass Spectrometry
Directly coupled liquid chromatography/fast atom bombardment mass spectrometry (LC/FABMS) employing a moving belt interface was used to analyze a number of mixtures including the partial hydrolysis products obtained from antiamoebin I, zervamicins IIA and IIB, leucinostatins, trichorzianines, …
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