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Record Nr. |
UNISA996212584003316 |
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Titolo |
Electric field applications in chromatography, industrial and chemical processes [[electronic resource] /] / edited by Takao Tsuda |
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Pubbl/distr/stampa |
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Weinheim ; ; New York, : VCH, c1995 |
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ISBN |
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1-281-75859-0 |
9786611758592 |
3-527-61525-3 |
3-527-61524-5 |
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Descrizione fisica |
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1 online resource (330 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Electrochemical analysis |
Chemistry, Analytic - Quantitative |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Electric Field Applications in Chromatography, Industrial and Chemical Processes; Table of Contents; 1 Introduction and Summary Takao Tsuda; Part 1 Electrochromatography; 2 Electrochromatography in Analytical Chemistry; 2.1 Theory of Band Broadening; 2.2 Apparent Mean Linear Flow Velocity and Elution Time; 2.3 Processes in Band Broadening; 2.4 Electrochromatography Zones; 2.5 Profiles of Pressurized Flow, Electroosmotic Flow, and Zones of Ionic Solutes; 2.5.1 Flow Profiles of Pressurized Flow; 2.5.2 Flow Profiles of Electroosmosis in an Open Tube; 2.5.3 Flow Profiles for Charged Molecules |
2.6 Pressurized Flow-Driven Electrochromatography on Microlcolumns2.6.1 Instrumentation; 2.6.2 Features and Operational Factors; 2.6.3 Chromatographic Behavior in Pressurized Flow-Driven Electrochromatography; 2.6.4 Chromatographic Variation due to the Application of High Voltage; 2.6.5 Relation between Elution Time Ratio and pH; 2.6.6 Variation of Electrophoretic and Electroosmotic Flow Velocities with pH; 2.6.7 Dependence of Electrophoretic and Electroosmotic Velocities on the Composition of Eluents Containing |
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Methanol; 2.6.8 Ion-Exchange Chromatography in an Electric Field |
2.6.9 Voltage-Programmed Electrochromatography2.7 References; 3 Electroosmosis and Electrochromatography; 3.1 Electroosmosis; 3.1.1 Surface Charge of Silica Gel and Packing Support; 3.1.2 Electrical Potential in the Vicinity of a Solid Surface; 3.1.3 Origin of Electroosmotic Flow; 3.1.4 Thickness of the Double-Layer; 3.1.5 Charge Density on Silica Gel Surfaces; 3.1.6 Chemical Modification of the Inner Surface by Adsorption in Open-Tubular Capillary Columns; 3.1.7 Effect of pH on Electroosmosis; 3.1.8 Electroosmotic Mobility in Open-Tubular Capillary Columns |
3.1.9 Electroosmotic Flow Velocity in Packed Columns3.2 Electroosmotically Driven Chromatography and Electrochromatography; 3.2.1 Electroosmotically Driven Electrochromatography; 3.2.2 Electroosmotically Driven Chromatography; 3.2.2.1 Open-Tubular Capillary Columns; 3.2.2.2 Packed Microcapillary (Drawn Packed Capillary) Columns; 3.2.2.3 Slurry-Packed Capillary Columns; 3.2.3 Advantages of Electroosmotic Flow for Liquid Chromatography; 3.3 References; 4 Electrochromatography with Radial Applied Voltage : Ion Separation by Electrochemical Approach; 4.1 Introduction; 4.2 Experimental Details |
4.2.1 Design of the Electrode Column4.2.2 Preparation of Stationary Phases; 4.3 Redox Separation of Electroactive Metals on the Conductive Stationary Phase; 4.4 Direct Electrostatic Interactions for Potential-Dependent Separation of Electroinactive Species; 4.4.1 Pretreated Carbon for the Separation of Metal Ions; 4.4.2 Stationary Phase Coated with Crown Ether for the Separation of Alkali Metal Ions; 4.4.3 Electrosorption for the Separation of Neutral Organic Compounds; 4.5 Indirect Electrostatic Interactions for Potential-Dependent Separation of Electroinactive Species |
4.5.1 Conducting Polymers for Separation of Anions |
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Sommario/riassunto |
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This authoritative review brings scientists up-to-date with the exciting recent developments in modern electric field applications and highlights their benefits compared with other methods. In Part 1 the book opens with a complete account ofelectrochromatography - a state-of-the-art technique that combines chromatography and electrophoresis. It reveals how you can achieve first-class separations in numerous analytical and biochemical applications. Part 2 focuses on the unique characteristics of electroprocesses in industry, and several examples, such as electroosmotic dewatering, n |
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