(Introduction to HPPLC / high pressure planar liquid chromatography). Huethig Publ.Co., Heidelberg, Basel, New York (1987), ISBN 3 7785-1563-2, 256 pages.Description of a novel technique. The stationary phase is a separation layer on glass, to which the mobile phase is fed under medium to high pressure (up to 80 bar). Developing modes are circular or anticircular. Any mobile and stationary phase combination useful in HPLC can be employed. Quantification is possible by either direct image processing (only in the visible range of the spectrum), or by radial scanning with a suitable densitometer (CAMAG). Chapters of the book are: Purpose and description of HPPLC, qualitative application range, quantitative application range, instrumentation, sample dosage, pressure and flow in

Chromatographic Science Series, No. 95, CRC Press - Taylor and Francis Group, Boca Raton, 2006, 424 pp. Designed as a practical, comprehensive source of information on the field of classical preparative layer chromatography (PLC), the monograph is a valuable and important supplement to the existing vast chromatographic literature, demonstrating the potential of PLC for separation and isolation of pure compounds, even from very complex mixtures. The book is organized on two parts, the first of which covers the theory and up-to-date procedures of PLC (chapters 1 through 8), while the second (chapters 9 through 16) includes applications to a selection of the most important classes and sample types. Section I: Introduction; Adsorption Planar Chromatography in the Nonlinear Range: Selected Drawbacks and Selected Guidelines; Sorbents and Precoated Layers in PLC; Selection and Optimization of the Moblile Phase for PLC; Sample Application and Chromatogram Development; Application of Horizontal Chambers; Location of Separated Zones by Use of Visualization Reagents, UV Absorbance on Layers Containing a Fluorescent Indicator, and Densitometry; Additional Detection Methods and Removal of Zones from the Layer. Section II: Medical Applications of PLC; PLC of Hydrophilic Vitamins; Preparative Layer Chromatography of Natural Mixtures; The Use of PLC for the Separation of Natural Pigments; Application of PLC to Inorganics and Organometallics; PLC in a Cleanup and Ground Fractionation of Geochemical Samples; The Use of PLC for Isolation and Identification of Unknown Compounds from the Frankincense Resin (Olibanum): Strategies for Finding Marker Substances.

Report VII of the DFG commission for clinical-toxicological analysis, special issue of the TIAFT bulletin; VCH Verlagsgesellschaft mbH, D-Weinheim 1987. TLC of abt. 1100 substances (drugs, pesticides etc. including metabolites) on silica with 10 different standardized solvent systems (single component up to 3-component systems) in comparison with 4 standards each.

People’s Hygiene Publishing House, Beijing 1990. A book with 222 pages and 186 drawings and photographs, introducing TLC densitometry and the related instrumentations, emphasizing on its applications in pharmaceutical analysis.

Third edition; John Wiley & Sons, New York, Chichester, Brisbane, Toronto, Singapore; (1992); ISBN 0-471-6122-7. General overview of the main aspects of practical TLC in 20 chapters (e.g. basics of TLC, theory, preparation of thin layers, sample preparation, sample application, mobile phase, development, visualization, documentation, quantification (visual techniques; in-situ quantification by densitometry), detection, reproducibility, preparative TLC, modified layers, precoated layers, HPTLC, special techniques (vapor programmed development, radial chromatography, programmed multiple development, OPLC, bioautography, enzyme inhibition, IR, MS) in-situ chromatography (chemical reactions and enzymatic treatment), combined TLC techniques (TLC/LC, TLC/ HPLC, TLC/ GC, TLC/IR).

Gesundheitshilfe Dritte Welt - German Pharma Health Fund e.V., 1994, 108 p. Description of simple and technically undemanding TLC methods for the identification of some compounds from the Essential Drug List, (amoxicillin, ampicillin, benzylpenicillin, chloroquine, various tetracyclines), corticosteroids (dexamethasone, betamethasone, prednisolone, hydrocortisone, hydrocortisone acetate), acetylsalicylic acid, paracetamol, ibuprofen, metamizole, albendazole, and mebendazole. TLC on silica or cellulose with mobile phases as simple and non-toxic as possible. Detection under UV or with platinate solution, Dragendorff's reagent, iodine vapor, ethanolic ninhydrin solution etc.

Thieme Medical Publishers Inc., New York (2006). This book 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 techniques and common applications of HPTLC in herbal analysis. Chapters covered are theoretical concepts (stationary phase, mobile phase, TLC results, densitometry), practical aspects of modern TLC (sample preparation, selecting the stationary phase, sample application, chromatogram development, derivatization, documentation, reporting and record keeping, TLC software, standardization), typical applications in herbal analysis, method development, and validation of qualitative and quantitative HPTLC methods.

(Thin-layer chromatography in pharmacies.) Wissenschaftliche Verlagsges. mbH, Stuttgart, ISBN 3-8047-1387-4 (1995). TLC procedures for 171 pharmaceuticals, drugs and preparations including coloured chromatograms; 450 pages, DIN-A-4-size, serial edition.