Cumulative CAMAG Bibliography Service CCBS

Our CCBS database includes more than 11,000 abstracts of publications. Perform your own detailed search of TLC/HPTLC literature and find relevant information.

The Cumulative CAMAG Bibliography Service CCBS contains all abstracts of CBS issues beginning with CBS 51. The database is updated after the publication of every other CBS edition. Currently the Cumulative CAMAG Bibliography Service includes more than 11'000 abstracts of publications between 1983 and today. With the online version you can perform your own detailed TLC/HPTLC literature search:

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      75 024
      (Basic experiments on TLC
      A. KUNUGI, K. TABEI, (Tokyo Coll. Pharm., Hachioji, Japan 192-03)

      1. Effect of temperature on Rf values.) (Japanese). Kagaku to Kyoiku (Jap. J. Educ.) 42, 206-210 (1994). Examination of the effects of temperature on Rf values in TLC, with some dyes and simple organic compounds, e.g. nitrobenzene, phenol, etc., and steroids as analytes.

      Keywords:
      Classification: 2a, 3d
      78 023
      TLC developing chamber for screening column chromatography fraction
      S.G. LEVINE, (North Carolina State Univ., Raleigh, NC 27695, USA)

      J. Chem. Educ. 73, 77 (1996). Description of a novel TLC developing chamber that greatly enhanced the efficiency of screening column chromatographic fractions in laboratory.

      Keywords:
      Classification: 3d
      85 017
      Displacement thin-layer chromatography
      J. BARISKA, T. CSERMELY, S. FUERSR, H. KALASZ*, M. BATHORI, (*Dept. of Pharm. and Pharmacotherapy, Semmelweis Univ. of Med., Nagyv·rad tÈr 4, P.O. Box 370, H-1445 Budapest, Hungary)

      J. Liqu. Chromatogr. 23, 531-549 (2000). Description of the basic features of planar displacement chromatography, including differences from elution chromatography, and that of column displacement chromatography, the possibility of using spacer displacement chromatography. Parameters limiting displacement chromatography, and their optimization to achieve better separation are discussed. Displacement thin-layer chromatography has the advantage of planar arrangement of the stationary phase, and opens new possibilities for analytical separations.

      Keywords:
      Classification: 3d
      91 006
      Application of a horizontal DS chamber to planar electrochromatography
      T.H. DZIDO *, R. MAJEWSKI, B, POLAK, W. GOLKIEWICZ, E. SOCZEWINSKI, (Dept. of Inorg. and Anal. Chem., Med. Univ., Staszica 6, 20-081 Lublin, Poland)

      J. Planar Chromatogr. 16, 176-182 (2003). A commercially available horizontal DS chamber has been applied to the planar electrochromatographic separation of a dye mixture and of the enantiomers of phenylalanine on non-polar stationary phases with ethanol-buffer or acetonitrile-buffer as mobile phases. The mobile phases were driven electroosmotically by applying a 50-250 V/cm field along a 10 cm RP-18 plate. Compared with conventional TLC separations the efficiency of electrochromatography was higher and the development time shorter. Conventional HPTLC of a dye mixture (1-aminoanthraquinone, fat brown, 4-diethylaminoazobenzene, 4-hydroxybenzeneazonaphthol-2, 4-(4-(N,N-ethylethanol)benzeneazo)-N-methylphthalimide, 4-nitroaniline) on RP-18 with 80% ethanol in pH 10 buffer (diluted 1:3 with water) and of DL-phenylalanine on CHIR plates in a horizontal chamber after presaturation; detection of DL-phenylalanine by application of ninhydrin solution before densitometry. Densitometry at 440 nm for the dye test mixture and at 520 nm for DL-phenylalanine.

      Keywords:
      Classification: 3d
      94 010
      Two-dimensional thin-layer chromatography
      S. GOCAN (Department of Analytical Chemistry, Babes-Bolyai University, Cluj-Napoca, Romania)

      J. Liq. Chrom. Rel. Technol. 27, 1105-1113 (2004). Two-dimensional (2D) TLC has been mostly used for the separation of a large number of compounds that cannot be separated in a single dimension TLC experiment. In 2D TLC, separation is on one surface spread along the entire area of the plate. The resolving power of the 2D TLC has great application, especially in the areas of biochemistry, biology, natural products, pharmaceuticals, and environmental analysis. Detailed description of two-dimensional development, two-dimensional development on bilayers, two-dimensional separation by TLC/electrophoresis, and chromatogram evaluation.

      Classification: 3d
      100 009
      Indirect resolution of enantiomers of penicillamine by TLC and HPLC using Marfey's reagent and its variants
      R. BHUSHAN*, H. BRÜCKNER, V. KUMAR (*Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India)

      Biomed. Chromatogr. 21 (10), 1064-1068 (2007). Indirect chiral separation of penicillamine (3,3-dimethylcysteine) enantiomers after derivatization with Marfey's reagent (FDNP-Ala-NH2) and two of its structural variants, FDNP-Phe-NH2 and FDNP-Val-NH2, with phenol - water 3:1 and solvent combinations of acetonitrile and triethylamine phosphate buffer in normal and reversed-phase TLC, respectively. Also separation of the diastereomers on a reversed-phase HPLC column with gradient elution of acetonitrile and 0.01 m trifluoroacetic acid. Comparison of the results due to these three reagents. Successful application of the method for checking the enantiomeric impurity of l-penicillamine in d-penicillamine and to check the enantiomeric purity of pharmaceutical formulations of d-penicillamine.

      Classification: 3d
      106 017
      Forced-flow planar liquid chromatographic techniques (after twenty-two years)
      E. TYIHÁK*, E. MINCSOVICS (*Plant Protection Institute, Hungarian Academy of Sciences, Herman O. Str. 15, P. O. Box 102, 1525 Budapest, Hungary; etyih@nki.hu)

      J. Planar Chromatogr. 23, 382-395 (2010). The paper summarizes progress in the main forced-flow planar liquid chromatographic (FFPLC) techniques taking into account one group of FFPLC used in practice, OPLC and rotation planar chromatography and another group like e. g. electrochromatographic techniques and shear-driven chromatography which show interesting results at an experimental level. Progress in FFPLC deals with the diversity of further instrumental developments and its basis, the instrument developments, determination of the role of the adsorbent layer in OPLC, challenges in the OPLC instrument development, and analytical and preparative applications of OPLC. Centrifugal layer or rotation planar chromatography is mentioned briefly. Two electrochromatographic techniques have been developed to accelerate the mobile phase flow, planar electrochromatography and planar dielectrochromatography using direct and alternating currents, respectively. One of the newest techniques among FFPLC is shear-driven chromatography in which the mobile phase is between two plates and is forced to flow above and inside the very thin adsorbent layer with shear-driven force generated by a moving plate. For the study of the biological activity of natural and synthetic compounds the planar adsorbent layer is advantageous, namely for in-vitro and in-vivo studies.

      Keywords: review
      Classification: 3d
      117 026
      Application of orthogonal pressurized planar electrochromatography to micropreparative separation of test dye mixture – preliminary results
      R. GAJOS, E. LOPACIUK, T. DZIDO* (*Department of Physical Chemistry, Chair of Chemistry, Medical University, Lublin, Poland, tadeusz.dzido@umlub.edu.pl)

      J. Planar Chromatogr. 29, 77-81 (2016). Orthogonal pressurized planar electrochromatography (OPPEC) of 4-(2-pyridylazo)resorcinol monosodium salt (1), patent blue (2), and azorubine (3) on RP-18W with 45 % methanol in buffer solution (pH 3.2, final concentration of buffer components in the mobile phase: 2.28 mmol/L of citric acid and 1.34 mmol/L of disodium hydrogen phosphate). The external pressure exerted on the adsorbent layer was set up as 15.0 bar. The polarization voltage applied to the electrodes was 1.5 kV, and the separation time was 150 min.

      Classification: 3d