Amer. Lab. 17, 44-45, 47-48 (1990). Description of amino-, cyano-, and diolmodified silica gels, and illustration of their applications as TLC stationary phases for the separation of vitamins, pesticides, DNP amino acids, gallic acid and ester, preservatives, steroids, natural substances and progesterones.

Anal. Chem. 64, 2183-2186 (1992). TLC of various dyes on zirconium oxide coated microscope slides. In situ diffuse reflectance IR microspectroscopy of the analyte spots on zirconia. Discussion of the band frequencies and intensities of a zirconia DRIFTS spectrum of Rhodamine B. Comparison of the identification on zirconia with that on alumina, silica. Minimum identifiable quantity, 5 ng, and detection limit, 0.3 µg for Rh. B after separation from acid blue. Discussion of the TLC properties of zirconia for some other dyes.

J. Planar Chromatogr. 7, 450-452 (1994). Preparation of a stationary phase for TLC by bonding purified volcanic tuff (rich in silica gel) with 1-octene; characterization by elemental analysis, measurement of specific surface area, and by chromatographic testing.

J. Planar Chromatogr. 9, 107-112 (1996). Examination of the adsorption properties and separating ability of silica modified by addition of sodium hydrogen carbonate. The retention of the chosen 20 alkaloids was examined by the use of a nonaqueous mobile phase and by optimization of the systems by changing the identity and concentration of the modifier. Detection under 254 or 366 nm or with Dragendorff's reagent. Results obtained in the study were used to determine programs for stepwise and multiple-development gradients suitable for the separation of a complex alkaloid mixture.

J. Planar Chromatogr. 12, 255-260 (1999). (1994) Modification of a sorbent Study of the conditions for the modification of polyamide with Co(II), Cu(II), and Zn(II) salts. Determination of the effect of impregnation time and concentration of the metal ion solution and test of the chromatographic properties on selected sulfonamides.

Part I. Comparison of separations of fatty acids on RP-18 plates with and without a concentrating zone. J. Planar Chromatogr. 15, 332-340 (2002). Fatty acids from pentanoic acid to tricosanoic acid have been separated on RP-18 with and without concentrating zone. Visual inspection of the chromatograms revealed that better separation of the acids was obtained on RP-18 plates with concentrating zones because compact chromatographic bands were obtained. TLC of 19 fatty acids on RP-18 with methanol - water 9:1; 19:1 or methanol. Visualization by exposure to iodine vapor.

J. Planar Chromatogr. 19, 324-326 (2006). GC-MS investigation of dichloromethane extracts from three different types of RP-18 modified silica gel used as TLC adsorbents. Alkenes and carbonyl compounds (two different aldehydes and one ketone) were identified.

J. Planar Chromatogr. 7, 157-159 (1994). TLC of morphine (as dansyl derivative, 5 - 80 ng) and 7-aminoflunitrazepam (as fluorescamin derivative, 100 pg - 2.5 ng); fluorescence enhancement was performed by dipping the developed plate (no details) in a solution of Triton X-100 in a 1:7 mixture of chloroform and hexane. Pre-chromatographic reactions on the TLC plate using a commercially available sampler.