Pitfalls And Errors Of Hplc In Pictures

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Pitfalls And Errors Of Hplc In Pictures

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Author : Veronika R. Meyer
language : en
Publisher: John Wiley & Sons
Release Date : 2013-02-14

Pitfalls And Errors Of Hplc In Pictures written by Veronika R. Meyer and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-02-14 with Science categories.

The third edition of this popular problem-solving guide for this widely-used method includes eleven completely new examples and several updated ones, adding up to 100 contributions about pitfalls and errors in HPLC. Each example is presented on a double page with the text on the left-hand and a fi gure on the right-hand side, true to the motto 'a picture says more than a thousand words'. In addition, the author presents essential fundamentals as well as helpful strategies, such as equipment tests or quality assurance processes. New in this edition * Variability of the standard deviation * Infl uence of the acid type and concentration in the eluent * Water as an unintentional additive in the mobile phase * Inadequate purity of mobile phase water * Incomplete degassing * Inadequate stabilization of the extraction solvent * Tailing of phosphate compounds in the presence of steel * Different detection properties of diastereomers * Detector overload in ELSD * System suitability test * From repeatability to reproducibility A must-have resource for all users - showing how to use HPLC efficiently and obtain reliable results.

Pitfalls And Errors Of Hplc In Pictures

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Author : Veronika Meyer
language : en
Publisher: Wiley-VCH
Release Date : 2006-03-20

Pitfalls And Errors Of Hplc In Pictures written by Veronika Meyer and has been published by Wiley-VCH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-03-20 with Science categories.

The complexity of the HPLC method allows on one side a wide variety of usage. On the other side it is also a source of possible errors. This book does not only list them, but illustrate them with concrete examples. The topics were presented in a clearly arranged style: a brief text with a corresponding figure. Chemists and laboratory assistants get here numerous hints how correct and reliable results could be transposed in daily laboratory work.

Chromatography

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Author : James M. Miller
language : en
Publisher: John Wiley & Sons
Release Date : 2005-12-16

Chromatography written by James M. Miller and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-12-16 with Science categories.

The first edition of Chromatography: Concepts and Contrasts, published in 1988, was one of the first books to discuss all the different types of chromatography under one cover. The second edition continues with these principles but has been updated to include new chapters on sampling and sample preparation, capillary electrophoresis and capillary electrochromatography (CEC), chromatography with mass spec detection, and industrial and governmental practices in regulated industries. Covers extraction, solid phase extraction (SPE), and solid phase microextraction (SPME), and introduces mass spectrometry Updated with the latest techniques in chromatography Discusses both liquid chromatography (LC)and gas chromatography(GC)

Fundamentals Of Environmental Sampling And Analysis

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Author : Chunlong Zhang
language : en
Publisher: John Wiley & Sons
Release Date : 2007-03-09

Fundamentals Of Environmental Sampling And Analysis written by Chunlong Zhang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-03-09 with Science categories.

An integrated approach to understanding the principles of sampling, chemical analysis, and instrumentation This unique reference focuses on the overall framework and why various methodologies are used in environmental sampling and analysis. An understanding of the underlying theories and principles empowers environmental professionals to select and adapt the proper sampling and analytical protocols for specific contaminants as well as for specific project applications. Covering both field sampling and laboratory analysis, Fundamentals of Environmental Sampling and Analysis includes: A review of the basic analytical and organic chemistry, statistics, hydrogeology, and environmental regulations relevant to sampling and analysis An overview of the fundamentals of environmental sampling design, sampling techniques, and quality assurance/quality control (QA/QC) essential to acquire quality environmental data A detailed discussion of: the theories of absorption spectroscopy for qualitative and quantitative environmental analysis; metal analysis using various atomic absorption and emission spectrometric methods; and the instrumental principles of common chromatographic and electrochemical methods An introduction to advanced analytical techniques, including various hyphenated mass spectrometries and nuclear magnetic resonance spectroscopy With real-life case studies that illustrate the principles plus problems and questions at the end of each chapter to solidify understanding, this is a practical, hands-on reference for practitioners and a great textbook for upper-level undergraduates and graduate students in environmental science and engineering.

Hplc Troubleshooting

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Author : Günter J. Eppert
language : en
Publisher:
Release Date : 2003

Hplc Troubleshooting written by Günter J. Eppert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The Hplc Expert Ii

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Author : Stavros Kromidas
language : en
Publisher: John Wiley & Sons
Release Date : 2017-01-05

The Hplc Expert Ii written by Stavros Kromidas and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-05 with Science categories.

How can I use my HPLC/UHPLC equipment in an optimal way, where are the limitations of the technique? These questions are discussed in detail in the sequel of the successful "HPLC Expert" in twelve chapters written by experts in the respective fields. The topics encompass - complementary to the first volume - typical HPLC users' problems and questions such as gradient optimization and hyphenated techniques (LC-MS). An important key aspect of the book is UHPLC: For which analytical problem is it essential, what should be considered? Besides presentation of latest developments directly from the main manufacturers, also UHPLC users and independent service engineers impart their knowledge. Consistent with the target groups, the level is advanced, but the emphasis is on practical applications.

Hplc Methods For Recently Approved Pharmaceuticals

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Author : George Lunn
language : en
Publisher: John Wiley & Sons
Release Date : 2005-05-06

Hplc Methods For Recently Approved Pharmaceuticals written by George Lunn and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-05-06 with Science categories.

An indispensable resource for busy researchers Your time is valuable-too valuable to spend hunting through the technical literature in search of the right HPLC assay techniques for your projects. With HPLC Methods for Recently Approved Pharmaceuticals, you'll quickly identify and replicate the ideal procedures for your project needs, without having to refer to original source publications. More of your time can then be spent in the lab, not the library. Covering the relevant world literature through 2003, this book picks up where Dr. Lunn's acclaimed HPLC Methods for Pharmaceutical Analysis left off. It arms you with established HPLC assay techniques for hundreds of newly approved drugs, as well as drugs for which assay methods were only recently developed. Combining detailed descriptions of procedures with specially annotated references, this practical handbook gives you: * HPLC methods for 390 commonly prescribed pharmaceutical compounds * Various procedures for each drug listed together-making it easy to mix and match for customized approaches * Methods for drugs in biological fluids and for bulk and formulated drugs * Chemical structures, molecular weights and formulas, and CAS Registry Numbers * Cross-references to The Merck Index * Retention times of other drugs that can be assayed using the same methods

Method Validation In Pharmaceutical Analysis

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Author : Joachim Ermer
language : en
Publisher: John Wiley & Sons
Release Date : 2014-11-10

Method Validation In Pharmaceutical Analysis written by Joachim Ermer and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-10 with Medical categories.

This second edition of a global bestseller has been completely redesigned and extensively rewritten to take into account the new Quality by Design (QbD) and lifecycle concepts in pharmaceutical manufacturing. As in the first edition, the fundamental requirements for analytical method validation are covered, but the second edition describes how these are applied systematically throughout the entire analytical lifecycle. QbD principles require adoption of a systematic approach to development and validation that begin with predefined objectives. For analytical methods these predefined objectives are established as an Analytical Target Profile (ATP). The book chapters are aligned with recently introduced standards and guidelines for manufacturing processes validation and follow the three stages of the analytical lifecycle: Method Design, Method Performance Qualification, and Continued Method Performance Verification. Case studies and examples from the pharmaceutical industry illustrate the concepts and guidelines presented, and the standards and regulations from the US (FDA), European (EMA) and global (ICH) regulatory authorities are considered throughout. The undisputed gold standard in the field.

Illustrated Pocket Dictionary Of Chromatography

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Author : Paul C. Sadek
language : en
Publisher: John Wiley & Sons
Release Date : 2004-07-30

Illustrated Pocket Dictionary Of Chromatography written by Paul C. Sadek and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-07-30 with Science categories.

Provides concise definitions, illustrations, formulas, and all of the other information that you need in a laboratory chromatography reference The Illustrated Pocket Dictionary of Chromatography offers the perfect quick reference to the parameters, systems, and components that support successful chromatographic separations. Concise, practical, and filled with detailed drawings, diagrams, and photographs, this pocket dictionary is designed for easy use in the laboratory. It provides a complete, up-to-date reference on analytical techniques such as gas chromatography, high-performance liquid chromatography, thin layer chromatography, and capillary electrophoresis as well as preparation techniques such as solid phase extraction and microextraction. The Illustrated Pocket Dictionary of Chromatography features: Explanations of key concepts Equations and formulas Parameters High-quality photographs of instruments, equipment, and components References for further research Explanations of common acronyms Ideal for the working chemist or technician in pharmaceutical, industrial, forensic, government, or other lab settings, the Illustrated Pocket Dictionary of Chromatography is also appropriate as a supplemental reference for analytical chemistry courses and labs. Students and analysts alike will find this compact yet comprehensive resource a valuable companion to their work in chromatography.

Practical High Performance Liquid Chromatography

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Author : Veronika R. Meyer
language : en
Publisher: John Wiley & Sons
Release Date : 2013-03-25

Practical High Performance Liquid Chromatography written by Veronika R. Meyer and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-25 with Science categories.

Jump into the HPLC adventure! Three decades on from publication of the 1st German edition of Veronika Meyer's book on HPLC, this classic text remains one of the few titles available on general HPLC aimed at practitioners. New sections on the following topics have been included in this fifth edition: Comparison of HPLC with capillary electrophoresis How to obtain peak capacity van Deemter curves and other coherences Hydrophilic interaction chromatography Method transfer Comprehensive two-dimensional HPLC Fast separations at 1000 bar HPLC with superheated water In addition, two chapters on the instrument test and troubleshooting in the appendix have been updated and expanded by Bruno E. Lendi, and many details have been improved and numerous references added. A completely new chapter is presented on quality assurance covering: Is it worth the effort? Verification with a second method Method validation Standard operating procedures Measurement uncertainty Qualifications, instrument test, and system suitability test The quest for quality Reviews of earlier editions "That this text is written by an expert in both the practice and teaching of HPLC is evident from the first paragraph....not only an enjoyable, fascinating and easy read, but a truly excellent text that has and will serve many teachers, students and practitioners very well." —The Analyst “...provides essential information on HPLC for LC practitioners in academia, industry, government, and research laboratories...a valuable introduction." - American Journal of Therapeutics