Xem 1-20 trên 133 kết quả Column chromatography
  • This book is characterized by three important features. The authors represent an impressive collection of international workers from Brazil, China, Egypt, Poland, Turkey, and the United States. The majority of the chapters reflect the importance of collaborative efforts in contemporary research. Finally, some chapters are especially useful because of the experimental details that are provided. And it is to be hoped that readers will find that the chapters are both informative and inspirational.

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  • MODERN PRACTICE OF GAS CHROMATOGRAPHY .MODERN PRACTICE OF GAS CHROMATOGRAPHY FOURTH EDITION Edited by Robert L. Grob, Ph.D. Professor Emeritus, Analytical Chemistry, Villanova University Eugene F. Barry, Ph.D. Professor of Chemistry, University of Massachusetts Lowell A JOHN WILEY & SONS, INC. PUBLICATION .Copyright  2004 by John Wiley & Sons, Inc. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada.

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  • Chromatography is the separation method for biological molecules from the analytical to the preparative scale. Few of the recent advances in life science, whether in "proteomics" or in the industrial production of recombinant therapeutics, would have been possible without the help of chromatographic separations. Concomitantly, chromatography nowadays stands for much more than a batch column packed with porous particles

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  • Ionic methods of separation have been used since the industrial revolution in Europe to reduce hardness of water. In the mid-nineteenth century, British researchers treated various clays with ammonium sulfate or carbonate in solution to release calcium. In the early twentieth century, zeolite columns were used to remove interfering calcium and magnesium ions from solutions to permit determination of sulfate. Ionic separation procedures were used in the Manhattan project to purify and concentrate radioactive materials needed to make atom bombs.

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  • Essential oils (also called volatile oils) generally extracted by distillation from plants are hydrophobic liquids containing volatile aromatic compounds. The essential oils are widely used in perfumes, cosmetics as well as in food and drink as flavor additives. Some essential oils show multiple pharmacological activities and have been considered as the major active fractions of herbal medicines [1–3].

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  • High-pressure liquid-solid chromatography (HPLC) is rapidly becoming the method of choice for separations and analysis in many fields. Almost anything that can be dissolved can be separated on some type of HPLC column. However, with this versatility comes the necessity to think about the separation desired and the best way to achieve it. HPLC is not now and probably never will be a turn-key, push-button type of operation.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 1. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 95. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 2. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 4. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 6. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 3. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 5. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 8. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 7. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 9. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 10. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 11. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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  • Introduction to Modern Liquid Chromatography, Third Edition part 12. High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC.

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