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
  • Keyword register: select an initial character and browse associated keywords
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Registered users can create a tailor made PDF of selected articles throughout CCBS search – simply use the cart icon on the right hand of each abstract to create your individual selection of abstracts. You can export your saved items to PDF by clicking the download icon.

      87 161
      (Determination of the oxidation products of disulfonated and trisulfonated PDBP by thin-layer chromatography
      H. DONG (Dong Huiru)*, J. ZHANG (Zhang Jingchang), H. JIU (Jiu Hua), J. ZHANG (Zhang Jiangjing), (*Dept. App. Chem., Beijing Univ. Chem. Technol., Beijing 100029, P.R. China)

      Chin. J. Anal. Lab. (Fenxi Shiyanshi) 20 (3), 48-50 (2001). TLC on silica gel with isopropanol - ethanol - NH3 1:1:1. Detection under UV 254 nm. Quantification by UV spectrophotometry at 252 nm. Investigation of the optimization of the separation and validation of the method.

      Keywords:
      Classification: 4e, 24, 35d
      95 016
      Luminographic detection of toxicity with Vibrio fischeri (luminescent bacteria)
      W. WEBER*, W. SEITZ, Anna AICHINGER, R. ALBERT (*Zweckverband Landeswasserversorgung, Betriebs-und Forschungslaboratorium, Am Spitzigen Berg 1, D-89129 Langenau, Germany, weber.w@lw-online.de)

      CBS 94, 2-4 (2005). HPTLC-AMD of four pharmaceuticals and extracts of surface water on silica gel prewashed with 2-propanol (immersion for 24 h) with a 25-step gradient based on acetonitrile - formic acid - dichloromethane. Luminographic detection at ng-level by immersion of the developed HPTLC plates into Vibrio fischeri bacteria suspension. Visual evaluation with CCD-camera, exposure time 40 s, inversion and scaling of exposure in pseudocolors. To remove matrix (humic acids) from surface water samples size exclusion chromatography is recommended.

      Classification: 4e, 37c
      106 018
      A critical look at the definition of multidimensional separations
      L. BLUMBERG*, M.S. KLEE (*Fast GC Consulting, P.O. Box 1243, Wilmington, DE 19801, USA)

      J. Chromatogr. A 1217(1), 99-103 (2010). Discussion of the definition of multidimensional (MD) separations, especially some potentially powerful separation techniques such as comprehensive 2D LC (LC × LC), and comprehensive 2D GC (GC × GC). The definitions of MD separations have been extended by some researches beyond their intended scope. This disqualifies comprehensive 2D techniques as LC × LC, GC × GC and 2D TLC from being considered as 2D techniques. In other instances, extended treatment of the definition is used as a basis to justify design-parameters of comprehensive 2D separations despite the fact that these parameters lead to sub-optimal implementations. The review draws attention to the shortcomings in the definition, discusses the weaknesses in the currently used definitions, and proposes to define n-dimensional analysis as one that generates n-dimensional displacement information.

      Classification: 4
      64 022
      Micro-HPLC/TLC/FTIR
      C. FUJIMOTO, F. MORITA, K. JINNO, K.H. SHAFER, (Materials Science, Toyohashi Univ. of Techn., Toyohashi 440, Japan)

      J. High Resol. Chrom. 11, 810-814 (1988). Identification problems encountered in HPLC/FTIR can be circumvented through use of a TLC plate as depositon and IR sampling medium showing increased resolution of components of complex mixtures.

      Keywords:
      Classification: 4
      55 082
      Circular thin-layer chromatography of quaternary alkaloids
      A. BAERHEIM SWENDSEN, A. Van KEPIPEN-VERLEUN, R. VERPOORTE

      Quaternary protoberberine alkaloids in plant material. J. Chromatogr. 291, 389-391 (1984). Circular TLC of quaternary alkaloids from jatrorrhiza palmata on silica with isopropanol - 1 M ammonium carbonate-dioxane 15:5:1. Detection by UV 254 nm. Also PLC. Solvent system suitable for other protoberberine-type alkaloids. Recommended method for protoberberine alkaloid separation.

      Keywords: herbal
      Classification: 4a, 22
      64 024
      Computer simulation and optimization of preparative thin-layer chromatography under conditions of isocratic and stepwise gradient elution
      W. MARKOWSKI*, E. SOCZEWINSKI, K.L. CZAPINSKA, (*Dep. Inorg. & Anal. Chem., Med. Acad., Staszica 6, 20081 Lublin, Poland)

      Chromatographia 27, 123-127 (1989). Study of overloaded systems using an equilibrium sandwich for continuous TLC with dyes as model samples. Investigation of the effect of sample volume and the mode of development on the maximum separation yield. Calculation of the final Rf values for the front and rear edges of the bands with a computer program. Good agreement between the experimental Rf values of zone boundaries and the values predicted by computer simulation.

      Keywords: preparative TLC
      Classification: 4c
      103 027
      Investigation of Symphytum cordatum alkaloids by liquid–liquid partitioning, thin-layer chromatography and liquid chromatography - ion trap mass spectrometry
      T. MROCZEK*, Karine NDJOKO-IOSET, K. GLOWNIAK, Agnieszka MIETKIEWICZ-CAPALA, K. HOSTETTMANN (*Department of Pharmacognosy with Medicinal Plants Laboratory, Medical University, 1 Chodzki St., 20-093 Lublin, Poland)

      Anal. Chim. Acta 566 (2), 157-166 (2006). Extraction of pyrrolizidine alkaloids from the alkalised crude extract of Symphytum cordatum (L.) W.K. roots as free tertiary bases and polar N-oxides by one-step liquid–liquid partitioning and pre-fractionation by preparative multiple-development TLC on silica gel with chloroform – methanol – 25 % ammonia 50:5:1. Three alkaloid fractions of different polarities were obtained which showed different retention on silica gel: the most polar N-oxides had the highest retention, the tertiary bases had medium retention, and diesterified N-oxides had the lowest retention. Purification of the former fraction, which was reduced into free bases by sodium hydrosulfite, by liquid-liquid partitioning on Extrelut-NT3 cartridge. Further analysis by HPLC – ion-trap MS.

      Keywords: preparative TLC
      Classification: 4d, 22
      122 022
      New constituents from Gymnocarpos decander
      H. BECHLEM, T. MENCHERINI, M. BOUHEROUM, S. BENAYACHE, R. COTUGNO, Alessandra BRACA*, N. DE TOMMASI (*Dipartimento di Farmacia, Università di Pisa, Pisa, Italy; alessandra.braca@unipi.it)

      Planta Medica 83(14/15), 1200-1206 (2017). The fractionation on cyclodextrane with methanol of the butanol-soluble parts of a methanolic macerate of Gymnocarpos decander aerial parts was monitored by TLC on silica gel with n-butanol – acetic acid – water 12:3:5. Detection by derivatization with cerium sulfate–sulfuric acid reagent. Through further analysis of the 5 resulting fractions, roseoside and heterosides of quercetin, of isorhamnetin and of tetrahydroxyoleanene were detected._x000D_

      Classification: 4d, 8a, 14, 32e