Adv. Chromatogr. (N.Y.) 30, 201-222 (1989). A review with 15 references on the error sources in densitometric evaluation of thin-layer chromatograms and electrophorograms, one- and two-dimensional versions, turbid and transparent media, comparison of slit scanning and spot scanning. Discussion of baseline, low concentration separations and gain correction.

J. Chromatogr. 655, 31-38, (1994). TLC of phenothiazines on silica with methanol - acetic acid 95:5. Detection by photochemical derivatization. Identification and quantification of propiomazine, acetopromazine and chlorpromazine by image analysis with a CCD camera, using both pseudocolor red-greenblue and grey-scale tones.

J. Chromatogr. A 786, 163-170 (1997). Investigation of the potential of photothermal beam deflection spectrometry (PTDS), photoacoustic spectroscopy (PAS), and photothermal radiometry (PTR) for the characterization of TLC plates with respect to the surface and in-depth distribution of the different compounds inside the sorbent. TLC of a test dye mixture and demonstration of the measurements using the three techniques.

Proc. Intern. Symp. on Planar Separations, Planar Chromatography 2001, pp. 15-21. HPTLC of benzo(a)pyrene on RP-18 with methanol - acetone 8:3. Spectrophotometry with a diode-array spectrophotometer working in the range of 197 to 612 nm with an average optical resolution of better than 2.0 nm.

J. Chromatogr. A 1182 (2), 219-225 (2008). UV imaging of spots on TLC plates while still wet with solvent. Imaging of spots of benzophenone during and after development by using a charge-coupled device camera. The limit of detection was 5 ng on a wetted plate and 3 ng on a dry plate. The relationship between peak area and sample loading was linear in the low nanogram range over an order of magnitude for both wet and dry modes. It was shown that UV measurements on wet glass plates suffer from low sensitivity; however, increased sensitivity was achieved by using aluminium plates. The separation process can be monitored by measurement of UV absorbance during TLC development on aluminium-backed plates.

J. Liq. Chromatogr. Relat. Technol. 39, 242-248 (2016). Review of the application of multivariate TLC retention data, the theory of hierarchical cluster analysis, principal component analysis and parallel factor analysis. Different applications such as exploring retention, lipophilicity analysis, quantitative structure–activity relationship modeling, solvent selection and comparison with other techniques were described.

J.Liquid Chromatogr. 8, 2875-2926 (1985). Discussion of optimization of instrumental parameters that influence resolution and signal-to-noise ratios in the recording of thin-layer chroMatograms by scanning densitometry. Proposition of a standardized method of determining sensitivity and detectability (used to evaluate the performance of a Shimadzu CS-910 scanning densitometer). Discussion of fluorescence enhancement reagents as a method of improving sample detectability in fluorescence mode as well as influence of the sorbent on position and intensity of the fluorescence emission signal.

Anal. Biochem. 171, 248-255 (1988). TLC of lipids on silica with methanol - ethanol - chloroform - NH3 1:49:6:6 or chloroform - methanol - acetic acid - water 60:45:5:3. Visualization by exposing to iodine vapor, by spraying with ninhydrin or molybdate. Chromatograms photocopied on transparent sheets, which are quantified by densitometry.