Thin-Layer Chromatography (TLC) is a modern, reliable tool that complements other chromatographic techniques. This book provides a practical guide to the basic principles, procedures and pitfalls on the practical application of TLC. Thin Layer Chromatography: A Modern Practical Approach offers a sequence of chapters following the steps of the technique as the chromatographer would follow them. The chapters provide a choice of sorbent best suited to the separation intended, followed by pre-treatment required for the sample, applying the sample to the sorbent layer, development procedure, visualisation and detection, and finally quantification. Imaging and hyphenation techniques are described. The reasons why recommendations are made for specific and more general methods are covered. The book also provides an overview of some recent developments in the field.

Instrumental Thin-Layer Chromatography, Second Edition offers a comprehensive source of authoritative information on all aspects of instrumental thin-layer chromatography. The use of short, topic-focused chapters facilitates identifying information of immediate interest for familiar or emerging uses of thin-layer chromatography. The book gives those working in both academia and industry the opportunity to learn, refresh, or deepen their understanding of fundamental and instrumental aspects of thin-layer chromatography, as well as the tools to interpret and manage chromatographic data. The book serves as a practical consolidated guide to the selection of separation conditions and the use of auxiliary techniques. This fully updated new edition restores the contemporary character of the book for those involved in advancing the technology, analyzing data produced, or applying the technique to new application areas. Some chapters have been consolidated to make room for topics not covered in the first edition, reflecting general changes in the field of thin-layer chromatography, especially in effects-directed detection, convenient interfaces for advanced spectroscopic detection, and greater automation possibilities. This book is a valuable reference for anyone who needs to acquire fundamental and practical information to facilitate progress in research and management functions utilizing information acquired by thin-layer chromatography. Features individual chapters written by recognized authoritative and visionary experts in the field Provides an overview and focused treatment of a single topic Provides tables and diagrams with commonly used data to facilitate practical work, comparison of results, and decision-making Places modern developments in the research literature into a general context not always apparent to inexperienced users of the technique Offers comprehensive updates to all chapters Includes new chapters on instrument platforms, effects-directed detection, data analysis tools, small-scale and microfluidic planar separation systems, and applications to the separation of amino acids and peptides, the analysis of saccharides and lipids, and forensic analysis

The present edited book is the presentation of 18 in-depth national and international contributions from eminent professors, scientists and instrumental chemists from educational institutes, research organizations and industries providing their views on their experience, handling, observation and research outputs on HPTLC, a multi-dimensional instrumentation. The book describes the recent advancements made on TLC which have revolutionized and transformed it into a modern instrumental technique HPTLC. The book addresses different chapters on HPTLC fundamentals: principle, theory, understanding; instrumentation: implementation, optimization, validation, automation and qualitative and quantitative analysis; applications: phytochemical analysis, biomedical analysis, herbal drug quantification, analytical analysis, finger print analysis and potential for hyphenation: HPTLC future to combinatorial approach, HPTLC-MS, HPTLC-FTIR and HPTLC-Scanning Diode Laser. The chapters in the book have been designed in such away that the reader follows each step of the HPTLC in logical order.

Thin-layer chromatography (TLC) is a powerful, fast and inexpensive analytical method. It has proven its usefulness in pharmaceutical, food and environmental analysis. This new edition of the practical TLC guide features a completely revised chapter on documentation, now including the use of digital cameras. Selected new sorbents and instruments are also introduced. Why has the prior edition been successful? All steps of the analytical procedure are clearly explained, starting with the choice of a suitable TLC technique and ending with data evaluation and documentation. Special emphasis is put on the proper choice of materials for TLC. Properties and functions of various materials and the TLC equipment are described, covering e. g. precoated layers, solvents and developing chambers, including information on suppliers. Many practical hints for trouble shooting are given. All this is illustrated with numerous coloured figures. How to use TLC in compliance with GLP/GMP regulations is described in detail, including the required documentation. Therefore the reader can very easily compile his own standard operating procedures.

Thin-layer chromatography (TLC) is widely used particularly for pharmaceutical and food analysis. While there are a number of books on the qualitative identification of chemical substances by TLC, the unique focus here is on quantitative analysis. The authors describe all steps of the analytical procedure, beginning with the basics and equipment for quantitative TLC followed by sample pretreatment and sample application, development and staining, scanning, and finally statistical and chemometric data evaluation and validation. An important feature is the coverage of effect-directed biological detection methods. Chapters are organized in a modular fashion facilitating the easy location of information about individual procedural steps.

High-Performance Thin-Layer Chromatography for the Analysis of Medicinal Plants presents the theoretical and technical information needed to perform reliable and reproducible high-performance thin-layer chromatography (HPTLC) to establish the identity, purity, quality, and stability of raw materials, extracts, and finished botanical products. The text provides a complete overview of the technique and common applications of HPTLC in herbal analysis. It will help the analyst answer questions such as: Am I paying for a high-quality material, but getting a cheap adulterant? Is this raw material worth its price? Does this product comply with the claim on its label? Has the composition of this product changed after being on the shelf for more than a year? Practical examples provided by renowned experts help the reader gain a firm understanding of HPTLC methodologies. More than 300 full-color illustrations aid comprehension of complex concepts, and easy-to-reference text boxes provide summaries of key information.This book is essential for analysts, quality assurance professionals, and regulators seeking a comprehensive text on how to use HPTLC to determine whether botanicals comply with current, good manufacturing practices. It will also benefit students in pharmacognosy, phytopharmacy, pharmaceutical biology, and analytical chemistry programs.

A practical how-to guide to all the basic techniques needed to practice thin layer chromatography in biochemical/pharmaceutical research and quality control. This updated edition presents the most current techniques as well as the hows and whys of TLC. Provides step-by-step methods for performing the separations as well as doing related tasks, such as applying the sample, selecting the mobile phase, and quantitation. Includes a special chapter on how to select solvents for the development of a chromatogram to separate specific individual components of a mixture.

Provides chemists with an in-depth account of chromatographic phenomena and a detailed reference guide to the various choices in optimizing chromatographic separations of enantiomers. Clarifies how thin-layer chromatography differs from, but can be used as a pilot procedure for, high-performance liq

In the study and conservation of art and artifacts, natural organic materials are frequently encountered in components such as coatings, binders, and adhesives. The identification of these materials is often crucial to the attempt to characterize the technologies employed by artists or craftspeople, understand the processes and causes of deterioration, and plan appropriate conservation treatments. Yet the limited resources of many conservation laboratories put many analysis techniques beyond their reach. Thin-layer chromatography can help fill this gap. The volume consists of a handbook, protocols, and guide to reference materials. The handbook serves as a primer for the basic application of thin-layer chromatography to the analysis of binding media, adhesives, and coatings found on cultural objects; the protocols provide step-by-step instructions for the laboratory procedures involved in typical analyses; and the guide to reference materials aids in the understanding of the types of materials and documentation needed for accurate analyses by thin-layer chromatography.

The fourth edition of this work emphasizes the general practices and instrumentation involving TLC and HPTLC, as well as their applications based on compound types, while providing an understanding of the underlying theory necessary for optimizing these techniques. The book details up-to-date qualitative and quantitative densitometric experiments on organic dyes, lipids, antibiotics, pharmaceuticals, organic acids, insecticides, and more.