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:

  • Full text search: Enter a keyword, e.g. an author's name, a substance, a technique, a reagent or a term and see all related publications
  • Browse and search by CBS classification: Select one of the 38 CBS classification categories where you want to search by a keyword
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      82 199
      A rapid, qualitative thin-layer chromatographic method for the separation of the enantiomers of unusual aromatic amino acids
      Z. DARULA, G. TÖRÖK, G. WETTMANN, E. MANNEKENS, K. ITERBEKE, G. TOTH, D. TOURWE, A. PETER*, (Dept. of Inorg. and Anal. Chem., Attila József Univ., H-6720 Szeged, Dóm tér 7, Hungary)

      J. Planar Chromatogr. 11, 346-349 (1998). TLC of the enantiomers of several unusual aromatic amino acids (phenylalanine, tyrosine, histidine, and tryptophan analogs, and analogs containing tetralin or 1,2,3,4-tetrahydroisoquinoline skeletons) synthesized in racemic or homochiral form on chiral plate with acetonitrile - methanol - water 4:1:1; 4:1:2 or acetonitrile - methanol - water - diisopropylethylamine 40:10:20: 1. Visualization with ninhydrin.

      Keywords:
      Classification: 18a, 38
      87 164
      The effect of structure on the resolution of dansyl amino acids using beta-cyclodextrin as a mobile phase additive in reversed-phase thin-layer chromatography
      J.W. LEFEVRE*, E.D. ROGERS, K.L. PICO, C.L. BOTTING, (*Chem. Dept. State Univ. of New York at Oswego, Oswego, NY 13126, USA)

      Chromatographia 52 (9/10), 648-652 (2000). Reversed-phase TLC of enantiomers of dansyl amino acids with varying structures to determine the structural features necessary for enantio-selection by beta-cyclodextrin (b-CD), a chiral mobile phase additive. 8 DNS-DL-amino acid pairs were resolved for the first time using the methodology.

      Keywords:
      Classification: 38
      98 133
      Separation of selected enantiomers of fatty hydroxyl acids by TLC
      J. SZULIK*, A. SOWA (*Inst. of Chem., Silesian Univ., 9 Szkolna Street, 40-006 Katowice, Poland)

      Acta Chrom. 11, 233-237 (2001). Conditions for separation of racemic mixtures of fatty acids by use of a mobile phase containing a chiral compound as additive and on a chiral stationary phase. TLC separation of the enantiomers of DL-alpha-hydroxypalmitic acid on silica gel with acetone – hexane – hydrochloric acid 3:5:2 containing 1 % L-alanine, detection by dipping in 2 % aqueous sodium hydroxide solution. TLC of the enantiomers of DL-12-hydroxystearic acid on silica gel F254 with hexane – acetonitrile – acetic acid – hydrochloric acid 5:2:1:2 containing 2 % L-alanine, detection by dipping in 2 % aqueous sodium hydroxide solution. Separation of the enantiomers of DL-12-hydroxyoleic acid on chiral plate with acetone – water 3:2, detection by treatment with iodine vapor. Isomers were characterized by calculation of their optical topological indexes.

      Classification: 38
      101 105
      Pressurized planar electrochromatographic separation of the enantiomers of tryptophan and valine
      Beata POLAK*, A. HALKA, T.H. DZIDO (*Department of Physical Chemistry, Medical University of Lublin, Staszica 6, 20-081 Lublin, Poland; beata.polak@am.lublin.pl)

      J. Planar Chromatogr. 21, 33-37 (2008). Pressurized planar electrochromatography (PPEC) and TLC of tryptophan and valine on chiral plates (with D-4-hydroxyproline as the chiral selector) prewashed with methanol, with acetonitrile - methanol - water - 1.25 mM citric acid and disodium phosphate buffer 7:1:1:1. Detection by spraying with a solution of ninhydrin in acetone, followed by heating at 110 °C for 5 min.

      Classification: 38
      107 158
      TLC study of the separation of the enantiomers of lactic acid
      M. SAJEWICZ*, E. JOHN, D. KRONENBACH, M. GONTARSKA, T. KOWALSKA (*Silesian University, Institute of Chemistry, 9 Szkolna Street, 40-006 Katowice, Poland)

      Acta Chromatographica 20(3), 367-382 (2008). Investigation of the separation of the enantiomers of D,L-lactic acid with transition metal cations (i.e., Co2+, Ni2+, and Mn2+, rather than Cu2+ as stated in the literature) used to impregnate the silica gel. The goal was first to achieve a resolution that might enable the quantification of the two lactic acid enantiomers and second to gain deeper insight into the mechanism of separation. For comparison D,L-lactic acid was chromatographed on non-impregnated silica gel, and then efficient separation conditions with the Ni2+ and Co2+ cations were established, which outperformed the previously reported procedure with Cu2+. The Mn2+ cation proved unsuitable for the purpose. The enantiomers of D,L-lactic acid were also separated on non-impregnated silica gel, which seems yet more proof of the microcrystalline chirality of silica gel used as stationary phase and of its substantial contribution to the enantiomer separation investigated.

      Keywords:
      Classification: 38
      120 006
      Chiral thin-layer chromatography in dynamic studies – a short review
      M. SAJEWICZ, Teresa KOWALSKA* (*University of Silesia, Institute of Chemistry,
      Department of General Chemistry and Chromatography, 9 Szkolna Street,
      40-006 Katowice, Poland, teresa.kowalska@us.edu.pl)

      J. Planar Chromatogr. 30, 333-339 (2017). Review of applications of chiral TLC to demonstrate the dynamic phenomenon of the spontaneous oscillatory chiral conversion with the low molecular weight carboxylic acid. The principles of oscillatory processes and chiral conversion and condensation, as well as selected examples of the applicability of chiral TLC to dynamic studies were reviewed.

      Classification: 1, 38
      65 189
      Direct stereochemical resolution of enantiomeric amides via thin-layer chromatography on a covalently bonded chiral stationary phase
      C.A. BRUNNER*, I. WAINER, (*U.S. Food & Drug Administration, Center for Drug Evaluation and Research, Rockville, MD 20857, USA)

      J. Chromatogr. 472, 277-283 (1989). TLC of enantiomeric amides on naphtyl-ethyl-urea-aminopropyl-bonded silica with hexane - isopropanol - acetonitrile 20:8:1. Detection under UV 254/360 nm. Discussion of the preparation of the chiral stationary phase.

      Keywords:
      Classification: 17c, 38
      69 228
      Problems and solutions in chiral thin-layer chromatography
      L. WITHEROW, T.D. SPURWAY, R.J. RUANE, I.D. WILSON*, K. LONGDON, (*Dept. Safety Med., ICI Pharm., Mereside, Alderley Park, Macclesfield, Cheshire SK10 4TG, U.K.)

      J. Chromatogr. 553, 497-501 (1991). Description of the preparation of a two-phase "pirkle" modified amino-bonded TLC plate for the separation of enantiomers. Preparation of the plate by partially immersing an HPTLC plate in a solution of chiral selector N-(3,5-dinitrobenzoyl)-L-leucine. Use of the modified portion to separate the enantiomers of the model compounds 2,2,2-trifluoro-(9-antryl)ethanol and 1,1'-binaphthol. Elution of the separated enantiomers onto the unmodified portion of the plate using continuous development. Detection by fluorescence quenching.

      Keywords:
      Classification: 3b, 38