Chromatography is a powerful and reliable method for the isolation and identification of similar molecules from complex matrices, making it an ideal technique for the identification of compounds from medicinal plants. A renewed interest in natural products for medicine has lead to the development of chromatographic techniques with improved separation and greater levels of detection. Rapid and total characterisation of all constituents of medicinal plants is becoming the norm, along with the identification of xenobiotics within the matrix. This book presents a comprehensive, yet critical, survey of the latest developments in the field, including the newest technologies. Due consideration is given to the advantages and disadvantages of each technique, making the book essential reading for newcomers to the field and experienced workers alike.