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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      77 217
      Direct thin-layer chromatographic separation of enantiomers of six selected amino acids using 2-o-[(R)-2-hydroxypropyl]-b-CD as the mobile phase additive
      Y. AI (Ai Youhao), H. LIN (Lin Huitong), SH. FR (Fu Shengzhang), M. XING (Xing Miggao), Y. INOUE, (*Lanzhou Inst. Chem. Phys., Chin. Acad. Sci., Lanzhou 730000, P.R. China)

      Anal. Letters 28, 2041-2048 (1996). TLC on silica with acetonitrile - water 2:5 containing 2-o-[(R)-2-hydroxypropyl]-b-CD as additive. Detection by spraying with a solution of 1.5 g salicylaldehyde in 100 mL toluene and heating at 50 °C for 10 min.

      Keywords:
      Classification: 18a, 38
      84 057
      Topological indexes for evaluation of the separation of D and L amino acids by TLC
      A. PYKA, (Fac. of Pharm., Acad. of Med., 4, Jagiellonska Street, PL-41-200 Sosnowiec, Poland)

      J. Liq. Chrom. & Rel. Technol. 22, 41-50 (1999). Separation of selected amino acids into their enantiomers by TLC on a chiral phase. A new valence optical topological index and valence optical Gutman index are proposed which enable distinction between isomers of L and D configuration. HPTLC of optical isomers of D and L amino acids (alanine, norvaline, norleucine, glutamic acid, phenylalanine, tyrosine, tryptophan, proline) on Chir HPTLC plates with methanol - water - acetonitrile 1:1:4. Visualization by dipping into a solution of 0.3% ninhydrin in acetone and heating at 110°C for 10 min.

      Keywords:
      Classification: 2c, 18, 38
      88 196
      Molecular modelling of planar chromatographic enantioseparation of amino acids on sorbents containing copper complexes of l-hydroxyproline derivatives
      W.J. KOWALSKI, J. NOWAK, (Inst. of Chem., Univ. of Silesia, ul. Szkolna 9, Pl - 40-006 Katowice, Poland)

      Proc. Intern. Symp. on Planar Separations, Planar Chromatography 2001, pp. 45-54. TLC of 9 amino acids (Ala, Phe, Val, Leu, Ile, Trp, Tyr, Asp, Gln) on RP-18 impregnated with a proline derivative and copper(II) ions with methanol - water - acetonitrile 1:1:4.

      Keywords:
      Classification: 18, 38
      102 060
      Experimental investigation of the oscillatory transenantiomerization of L-tyrosine
      M. SAJEWICZ, D. KRONENBACH, D. STASZEK, M. WRÓBEL, G. GRYGIERCZYK, Teresa KOWALSKA* (*Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-006 Katowice, Poland; kowalska@us.edu.pl)

      J. Liq. Chromatogr. Relat. Technol. 31, 2006-2018 (2008). TLC of L-tyrosine on silica gel (prewashed by development with methanol - water 9:1) impregnated by dipping in 30 mMol/L L-prolin in water - methanol 9:1, with n-butanol - acetonitrile - water 6:2:3 at 22 °C. Quantitative determination by absorbance measurement at 200 nm. The results of the investigation confirm clearly the ability of L-tyrosine to undergo oscillatory transenantiomerization, similar to that of the previously studied profens and L-alpha-phenylalanine.

      Classification: 18a, 38
      109 134
      Liquid chromatographic resolution of the enantiomers of metoprolol and carvedilol in pharmaceutical formulations by use of Marfey’s reagent and its variants
      R. BUSHAN*, C. AGARWAL (*Department of Chemistry, Indian Institute of Technology, Roorkee-247667, India; rbushfey@iitr.ernet.in)

      J. Planar Chromatogr. 23, 335-338 (2010). TLC of (R,S)-metoprolol and (R,S)-carvedilol, derivatized with 1-fluoro-2,4-dinitrophenyl-5-L-alanine amide (Marfey’s reagent, FDNP-L-Ala-NH2) and its six structural variants (FDNP-L-Phe-NH2, FDNP-L-Val-NH2, FDNP-L-Pro-NH2, FDNP-L-Leu-NH2, FDNP-L-Met-NH2, and FDNP-D-Phg-NH2), on RP-18 in a saturated chamber at 25 +/- 2 °C. The best separation was obtained with TEAP buffer (pH 5.5, 50 mM) - acetonitrile 1:1. The LOD for metoprolol and carvediol were in the range of 240 to 350 ng/zone for each enantiomer. The intra-day and inter-day precision (%RSD) was between 0.1-0.2 for (S)-metoprolol and 0.2-0.8 for (R)-metoprolol.

      Classification: 38
      122 089
      Enantioseparation of (±)-terbutaline by ligand exchange using L-amino acids as chiral selectors
      M. SINGH*, S. SINGH (*Department of Chemistry, Lovely Professional University, Punjab, 144411, India, manishasingh2283949@gmail.com)

      J. Planar Chromatogr. 31, 361-365 (2018). TLC of (±)-terbutaline on silica gel with chiral ligand-exchange reagent (LER). L-(‒)-Trp, L-(‒)-Phe, and L-(‒)-His were chosen as chiral selectors. Copper(II) acetate (2 mM) and L-amino acid (4 mM) solutions were prepared in water ‒ methanol 17:1 and mixed to be used as LER. In terms of resolution, best enantioseparation was obtained with acetonitrile ‒ methanol ‒ chloroform ‒ water 10:4:3:3 using L-Trp as chiral selector. The hRF values for (-) and (+)-isomers were 20 and 56, respectively.

      Classification: 38
      66 193
      Separation of enantiomers by thin-layer chromatography
      M. MACK*, H.-E. HAUCK, (*E. Merck, FO Reag Chrom., P.O. Box 41 19, D-W-6100 Darmstadt, Germany)

      J. Planar Chromatogr. 2, 190-193 (1989). Presentation of information concerning the stationary phases and corresponding retention mechanisms which are applied for TLC-separation of optical antipodes. The following chiral stationary phases have been used successfully for this purpose: cellulose and derivatives; cyclodextrins; „Pirkle“ selectors; impregnations with chiral acids or bases; and complexes of copper and optically active ligands (amino acids or their derivatives). A special emphasis is laid on applications of chiral ligand exchange chromatography (LEC), the most important separation principle in this field.

      Keywords: review
      Classification: 38
      71 198
      Adsorption chromatography on cellulose VII
      M. LEDERER, (Inst. de Chim. Miner. et Anal., Univ. de Lausanne, Boite Postale 115, Centre Univ., CH-1015 Lausanne 15, Switzerland)

      Chiral separations on cellulose with aqueous solvents. J. Chromatogr. 604, 55-62 (1992). Examination of chiral properties of different celluloses in adsorption TLC with aqueous solvents. Comparison of D- and L-tryptophan and D- and L-methyltryptophan on microcrystalline cellulose. Separation of D- and L-fluorotryptophan using long (40 cm) thin layers of microcrystalline cellulose.

      Keywords:
      Classification: 38