Thin-layer chromatography (TLC) is a powerful, fast and inexpensive analytical method, which has proven its effectiveness in the analysis of pharmaceuticals, food and the environment. This new edition of the practical guide to TLC includes a completely revised chapter on documentation, which now covers the use of digital cameras, while selected new sorbents and instruments are also introduced. This edition retains the successful features of its predecessor: Clear explanation of all steps in the analytical procedure, starting with the choice of a suitable TLC technique and finishing with data evaluation and documentation. Special emphasis on the correct choice of materials for TLC. Properties and functions of various materials and the TLC equipment are described, covering precoated layers, solvents and developing chambers, including information on suppliers, among others. Many practical hints for troubleshooting. Detailed description of using TLC in compliance with GLP/GMP regulations, including the required documentation, allowing readers to easily compile their own standard operating procedures. Numerous color illustrations.