J. Liq. Chrom. Rel. Technol. 27, 1377-1411 (2004). The review includes 117 recent references regarding modern and efficient TLC methods like: gradient elution (GE) TLC, automated multiple development (AMD), and over-pressured layer chromatography (OPLC). Detailed discussions are included about the mobile phase optimization by the “Prisma” method and other mathematical models. The analysis and quantification by photodensitometry of flavonoids, coumarins, saponins, alkaloids, and other classes of compounds include detailed experimental conditions, stationary and mobile phase, development methods and quantitative determination by densitometric procedures.

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.

J. Planar Chromatogr. 20, 399-406 (2007). General aspects of food analysis using planar chromatography as an optimum tool for national and international standards to keep analysis economical. Contents: 1. The changing situation as a challenge; 2. TLC and HPTLC applications in food analysis and rapidly growing topics; 2.1 Topics in the past twenty years; 2.2 Rapidly growing topics in the future; 3. Is HPTLC a reliable quantitative method in food analysis; 3.3 Performance key data; 3.2 Method comparison; 3.3 Separating power; 4. Obstacles and benefits of planar chromatography; 4.1 Obstacles; 4.2 Benefits; 5. Future potential of HPTLC in food analysis; 5.1 Simplified sample preparation; 5.2 Simultaneous determination of analytes with different detection principles or analytes difficult to detect in general; 5.3 Digital evaluation of plate images; 5.4 Bioactivity-based detection; 5.5 Mass-selective information on demand; 5.6 Cost-effectiveness; 6. Conclusions. Planar chromatography for simple solution of difficult problems, reduced sample preparation, selective derivatization, quantitative and sensitive determinations using appropriate instrumentation, compliance with regulated environments, e. g. cGMP and cGLP, validation fulfilling requirements for reliable analysis, reduced costs, high throughput and comparable results.

Trends Anal. Chem. 76, 60-70 (2016). The review discusses suitable analytical approaches for the analysis of counterfeit and substandard pharmaceuticals in Tanzania. The authors highlight the importance of TLC and HPTLC for the quality control of pharmaceuticals in developing countries, having a repeatability and a reproducibility of the results comparable to those obtained with HPLC.

Marcel Dekker, Inc., New York, 378 pages. Price: $ 150.00 (2001). The book provides practical guidance concerning all critical factors involved in successful and valid quantitative chromatographic analysis, details the fundamental principles of GC, HPLC, and thin-layer chromatographic instrumentation, and reveals the influence on quantitative assays. Part 1: Introduction to quantitative chromatographic analysis (Critical factors that govern a successful quantitative chromatographic analysis; sample collection, transport and storage; sample preparation; the chromatography detector; processing chromatographic data); Part 2: Quantitative GC; Part 3: Quantitative LC analysis; Part 4: Thin layer chromatography (TLC apparatus; TLC applications).

J. Chromatogr. B 764 (1/2), 255-287 (2001). A review with 167 references involving TLC methods for the separation of N-mustards such as chlorambucil, melphalan, oxazaphosphorine drugs and their metabolites, etc..

Revista Iberica de Parasitologia 65 (1-4), 21-36 (2005). Review on the TLC literature in helminthology from 1996 to 2004. Principles and practices of modern TLC for the analysis of lipids, amino acids, carbohydrates and pigments in helminths such as various species of trematodes, cestodes and nematodes are described.