Troubleshooting HPLC Systems

Troubleshooting HPLC Systems
Author: Paul C. Sadek
Publisher: Wiley-Interscience
Total Pages: 332
Release: 2000
Genre: Science
ISBN:
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A complete, up-to-date guide to the use, maintenance, and troubleshooting of HPLC systems The last twenty-five years have seen a dramatic rise in the use of High Performance Liquid Chromatography (HPLC) in laboratories worldwide. Troubleshooting HPLC Systems provides analysts as well as laboratory technicians and managers with a readily accessible and immensely useful guide to the new generation of HPLC equipment and techniques. With an emphasis on effective troubleshooting of HPLC systems, this lab companion covers system configuration and functions, problem-solving procedures, maintenance, and HPLC basics. It then walks chromatographers investigating the source of a malfunction through each system component-from solvents and reservoirs to sample preparation to columns and detectors. Special features of Troubleshooting HPLC Systems include: * A detailed review of HPLC instrumentation and accessories * The role of operating parameters as indicators of system performance * Step-by-step troubleshooting protocols for each system component * How to set up a preventive maintenance program for HPLC systems * An overview of the categories of HPLC separations * A compilation of HPLC terms and definitions * Tables and charts detailing solvents' properties

Troubleshooting LC Systems

Troubleshooting LC Systems
Author: John W. Dolan
Publisher: Humana Press
Total Pages: 515
Release: 2013-03-20
Genre: Computers
ISBN: 9781475768794
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Over the last 15 years, high-performance liquid chromatogra phy (LC) has made the transition from an instrument used only by experts in research labs to a tool used for routine applications by relatively unskilled workers. With this transition have come in instrumentation and column technology. In major advances the past, the operator had to be a jack-of-all-trades, with a screw driver, soldering iron, and various wrenches as constant compan ions in the LC lab. Today, many instruments contain micropro cessors as powerful as those of mainframe computers of earlier days. With this technology has come a variety of self-diagnostic tools that allow the LC system to locate many of its own prob lems. Traditionally, well-honed LC troubleshooting skills have been a result of years of work at the bench. Today the LC system itself often can do a better job of troubleshooting than the operator can. Yet many of the problems of the past are still the major problems of today: air bubbles, check valves, detector lamps, and, of course, problems with the separation. An added pressure on the operator of today's LC system is that of productivity-the lab often cannot afford unnecessary downtime. This means that the operator has to be a troubleshooting expert, or has to have that expertise at his or her fingertips. The present book was written to provide this expertise in an easy-to-use format for users at all levels of experience.

Maintaining and Troubleshooting HPLC Systems

Maintaining and Troubleshooting HPLC Systems
Author: Dennis J. Runser
Publisher:
Total Pages: 194
Release: 1981-05-06
Genre: Reference
ISBN:
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Provides users of HPLC equipment with a comprehensive text for troubleshooting and maintaining HPLC systems. Describes how the chromatographer can maintain the HPLC system in operating condition, what to look for and do to prevent and solve HPLC problems, and what can and should be done before calling a service representative. Organized into chapters which basically represent the typical components of the HPLC system, with each chapter describing a basic element of the HPLC system in terms of maintenance and solving system problems. Arranged as a guide and working manual to help the chromatographer reduce instrument downtime, allowing for more efficiency and cost effectiveness in the HPLC laboratory.

Troubleshooting LC Systems

Troubleshooting LC Systems
Author: John W. Dolan
Publisher: Springer Science & Business Media
Total Pages: 518
Release: 1989-03-01
Genre: Computers
ISBN: 1592596401
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Over the last 15 years, high-performance liquid chromatogra phy (LC) has made the transition from an instrument used only by experts in research labs to a tool used for routine applications by relatively unskilled workers. With this transition have come in instrumentation and column technology. In major advances the past, the operator had to be a jack-of-all-trades, with a screw driver, soldering iron, and various wrenches as constant compan ions in the LC lab. Today, many instruments contain micropro cessors as powerful as those of mainframe computers of earlier days. With this technology has come a variety of self-diagnostic tools that allow the LC system to locate many of its own prob lems. Traditionally, well-honed LC troubleshooting skills have been a result of years of work at the bench. Today the LC system itself often can do a better job of troubleshooting than the operator can. Yet many of the problems of the past are still the major problems of today: air bubbles, check valves, detector lamps, and, of course, problems with the separation. An added pressure on the operator of today's LC system is that of productivity-the lab often cannot afford unnecessary downtime. This means that the operator has to be a troubleshooting expert, or has to have that expertise at his or her fingertips. The present book was written to provide this expertise in an easy-to-use format for users at all levels of experience.

More Practical Problem Solving in HPLC

More Practical Problem Solving in HPLC
Author: Stavros Kromidas
Publisher: John Wiley & Sons
Total Pages: 309
Release: 2008-01-08
Genre: Science
ISBN: 3527612319
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A unique approach to solving HPLC problems. Everyone who bought "Problem Solving in HPLC" by Stavros Kromidas will equally benefit from nearly 100 new practical examples for optimization, trouble-shooting, and instrument performance given in this sequel. The author provides - guidance for selecting and evaluating methods, intstruments and columns, - practical help with everyday trouble-shooting, - advice for optimizing separations, always explaining the reason why. In each case the problem, the solution and the conclusions are presented over a maximum of 4 pages, and in addition the book contains manufacturers' addresses, references, data tables and checklists.

Introduction to Modern Liquid Chromatography

Introduction to Modern Liquid Chromatography
Author: Lloyd R. Snyder
Publisher: John Wiley & Sons
Total Pages: 831
Release: 2011-09-20
Genre: Science
ISBN: 1118210395
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The latest edition of the authoritative reference to HPLC 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. This Third Edition, with John Dolan as added coauthor, addresses important improvements in columns and equipment, as well as major advances in our understanding of HPLC separation, our ability to solve problems that were troublesome in the past, and the application of HPLC for new kinds of samples. This carefully considered Third Edition maintains the strengths of the previous edition while significantly modifying its organization in light of recent research and experience. The text begins by introducing the reader to HPLC, its use in relation to other modern separation techniques, and its history, then leads into such specific topics as: The basis of HPLC separation and the general effects of different experimental conditions Equipment and detection The column—the "heart" of the HPLC system Reversed-phase separation, normal-phase chromatography, gradient elution, two-dimensional separation, and other techniques Computer simulation, qualitative and quantitative analysis, and method validation and quality control The separation of large molecules, including both biological and synthetic polymers Chiral separations, preparative separations, and sample preparation Systematic development of HPLC separations—new to this edition Troubleshooting tricks, techniques, and case studies for both equipment and chromatograms Designed to fulfill the needs of the full range of HPLC users, from novices to experts, Introduction to Modern Liquid Chromatography, Third Edition offers the most up-to-date, comprehensive, and accessible survey of HPLC methods and applications available.

Modern HPLC for Practicing Scientists

Modern HPLC for Practicing Scientists
Author: Michael W. Dong
Publisher: John Wiley & Sons
Total Pages: 285
Release: 2016-04-06
Genre: Science
ISBN: 111929360X
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A comprehesive yet concise guide to Modern HPLC Written for practitioners by a practitioner, Modern HPLC for Practicing Scientists is a concise text which presents the most important High-Performance Liquid Chromatography (HPLC) fundamentals, applications, and developments. It describes basic theory and terminology for the novice, and reviews relevant concepts, best practices, and modern trends for the experienced practitioner. Moreover, the book serves well as an updated reference guide for busy laboratory analysts and researchers. Topics covered include: HPLC operation Method development Maintenance and troubleshooting Modern trends in HPLC such as quick-turnaround and "greener" methods Regulatory aspects While broad in scope, this book focuses particularly on reversed-phase HPLC, the most common separation mode, and on applications for the pharmaceutical industry, the largest user segment. Accessible to both novice and intermedate HPLC users, information is delivered in a straightforward manner illustrated with an abundance of diagrams, chromatograms, tables, and case studies, and supported with selected key references and Web resources. With intuitive explanations and clear figures, Modern HPLC for Practicing Scientists is an essential resource for practitioners of all levels who need to understand and utilize this versatile analytical technology.

HPLC

HPLC
Author: Marvin C. McMaster
Publisher: John Wiley & Sons
Total Pages: 252
Release: 2006-12-18
Genre: Science
ISBN: 0471754013
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This Second Edition of the classic handbook details how to set up an HPLC system that capitalizes on the latest innovations. It covers new techniques in high-temperature, micro-flow, and ultra-fast chromatography, the linking of an HPLC to a mass spectrometer, and more. Complete appendices and supplementary material online, this guide has everything chromatographers need to know to confidently separate, identify, purify, and quantify compounds.

HPLC and UHPLC for Practicing Scientists

HPLC and UHPLC for Practicing Scientists
Author: Michael W. Dong
Publisher: John Wiley & Sons
Total Pages: 410
Release: 2019-07-23
Genre: Science
ISBN: 1119313767
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A concise yet comprehensive reference guide on HPLC/UHPLC that focuses on its fundamentals, latest developments, and best practices in the pharmaceutical and biotechnology industries Written for practitioners by an expert practitioner, this new edition of HPLC and UHPLC for Practicing Scientists adds numerous updates to its coverage of high-performance liquid chromatography, including comprehensive information on UHPLC (ultra-high-pressure liquid chromatography) and the continuing migration of HPLC to UHPLC, the modern standard platform. In addition to introducing readers to HPLC’s fundamentals, applications, and developments, the book describes basic theory and terminology for the novice, and reviews relevant concepts, best practices, and modern trends for the experienced practitioner. HPLC and UHPLC for Practicing Scientists, Second Edition offers three new chapters. One is a standalone chapter on UHPLC, covering concepts, benefits, practices, and potential issues. Another examines liquid chromatography/mass spectrometry (LC/MS). The third reviews at the analysis of recombinant biologics, particularly monoclonal antibodies (mAbs), used as therapeutics. While all chapters are revised in the new edition, five chapters are essentially rewritten (HPLC columns, instrumentation, pharmaceutical analysis, method development, and regulatory aspects). The book also includes problem and answer sections at the end of each chapter. Overviews fundamentals of HPLC to UHPLC, including theories, columns, and instruments with an abundance of tables, figures, and key references Features brand new chapters on UHPLC, LC/MS, and analysis of recombinant biologics Presents updated information on the best practices in method development, validation, operation, troubleshooting, and maintaining regulatory compliance for both HPLC and UHPLC Contains major revisions to all chapters of the first edition and substantial rewrites of chapters on HPLC columns, instrumentation, pharmaceutical analysis, method development, and regulatory aspects Includes end-of-chapter quizzes as assessment and learning aids Offers a reference guide to graduate students and practicing scientists in pharmaceutical, biotechnology, and other industries Filled with intuitive explanations, case studies, and clear figures, HPLC and UHPLC for Practicing Scientists, Second Edition is an essential resource for practitioners of all levels who need to understand and utilize this versatile analytical technology. It will be a great benefit to every busy laboratory analyst and researcher.