This second edition of Plant Drug Analysis includes more than 200 updated color photographs of superb quality demonstrating chromatograms of all relevant standard drugs. All drugs presented meet the standard of the official pharmacopoeia and originate from well-defined botanical sources. With this guide the technique of thin layer chromatography can be easily used without previous pharmacognostic training. Only commercially available equipment and reagents are needed, the sources as well as all practical details are given. From the reviews ..".should not be missed in any laboratory dealing with crude drug analysis" trends in analytical chemistry ..".a unique and remarkable collection...an invaluable guide" Phytochemistry "The color photographs...are unbelievably well done" Analytical Biochemistry ..".a required text for any laboratory concerned with the analysis of medicinal plant products" Irish Pharmacy Journal