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.

      68 025
      Optimization
      B.M.J. DE SPIEGELEER, (FEDERA, Quality Control Laboratora, Jean Jaureslaan 71, B-1030 Brussels, Belgium)

      Chromatogr. Sci. 55, 71-85 (1991). A review with 50 references. Discussion of general optimization techniques that can be used in the different steps of the TLC process. Method for the choice of solvent in the chromatographic separation step are given.

      Keywords: review
      Classification: 2e
      71 018
      Advanced simplex optimization of two-factor selectivity by high-performance thin-layer chromatography
      Q.-S. WANG*, W.Q. XIE, D.P. FAN, (*Nat. Lab. Elem.-Org. Chem., Nankai Univ., Tianjin 30071, P.R. China)

      Chromatographia 35, 149-152 (1993). Description of a computer-assisted mixture design simplex method for the optimization of the solvent system. Separation of a mixture of 5 benzoic acid derivatives in reverse-phase and of 12 PTH-amino acids in normal phase. Method demonstrated using a two-factor selectivity rectangle concept and a special polynomial regression of 9 TLC runs, with the Rf difference as the selection criterion and with connection to a general simplex method.

      Keywords:
      Classification: 2e
      77 011
      A comparison of the models applied for optimization of the binary eluent composition in the RP-TLC systems by means of the interpretative methods
      W. PRUS, T. KOWALSKA, (Technical Univ. of Lodz, 2 Willowa Str., 43-309 Bielsko-Biala, Poland)

      Dünnschicht-Chromatographie. InCom Sonderband 1996, 124-138. Comparison of six different optimization methods based on the relationship of coupling the retention parameters with the binary mobile phase composition, as proposed by Snyder, Schoenmakers, Lu Peichang and Lu Xaoming, Purnell, Kowalska, and Horvath and Melander.

      Keywords:
      Classification: 2e
      85 013
      Optimization of separation in TLC by use of desirability functions and mixture designs according to the 'PRISMA' method
      A. PELANDER, J. SUMMANEN, T. YRJOENEN, H. HAARIO, I. OJANPERÄ, H. VUORELA*, (*Div. of Pharmacogn., Dept. of Pharm., P.O. Box 56, FIN-00014 Univ. of Helsinki, Finland)

      J. Planar Chromatogr. 12, 365-372 (1999). Development of a computer program for optimization of mobile phase composition in TLC and examination of this method for chromatography of cyanobacterial hepatotoxins on normal-phase TLC plates and for phenolic compounds on RP layers. HPTLC of microcystins (cyclic heptapeptides) on silica gel with combinations of n-propanol - ethyl acetate - water. Densitometry at 240 nm. TLC of phenolic acids (catechin, ellagic acid, gallic acid, kaempferol, methyl gallate, rutin) on RP-18. Videodensitometry at 254 nm.

      Keywords:
      Classification: 2e, 32
      68 026
      Separation of some phenylurea and s-triazine herbicides by OPLC with a binary mobile phase
      J. TEKEL, (Food Research Inst., Trencianska 53, 82509 Bratislava, Czechoslovakia)

      J. Planar Chromatogr. 3, 326-330 (1990). Optimization of mobile phase composition for the separation of phenylurea and s-triazine herbicides on silica by means of the „ELUO“ method in which solvents are selected from an eluotropic series based on solvent power. The method is complementary to the „PRISMA“ method for optimizing the compositions of binary, ternary and quaternary mobile phases for OPLC, or even HPLC and HPTLC. TLC of 13 herbicides on silica with five different binary solvent systems.

      Keywords:
      Classification: 2e, 29d
      71 019
      The correlation between the molecular structures of O-ethyl-O-aryl-N-isopropyl phosphoroamidothioates and their retardation factors in HPTLC
      Q.-S. WANG*, H.-Z. YANG, B.-W. YAN, (*Nat. Lab. of Elemento-Organic Chemistry, Nankai Univ., Tianjin 300071, P.R. China)

      J. Planar Chromatogr. 6, 144-146 (1993). Investigation of a computer assisted retardation factor prediction system (RFPS) for 15 O-ethyl-O-aryl-N-isopropyl phosphoroamidothioates in HPTLC. The system is based on the use of 4 physico-chemical parameters: hydrophobicity, electric affect, field effect, and steric effect, all of which have a significant influence on HPTLC retention mechanism. The system has been evaluated by comparison of measured retardation factors with those predicted data and experimental results.

      Keywords:
      Classification: 2e
      77 018
      Criteria for comparing and evaluating the optimization of separation in TLC
      Q.S. WANG*, B.-W. YAN, (Nat. Lab. of Elemento-Org. Chem., Nankai Univ., Tianjin 300071, P. R. China)

      J. Planar Chromatogr. 9, 192-196 (1996). Optimization procedures in TLC require unambiguous goals, and optimization criteria express such goals in mathematical terms. If the retardation factor, Rf, varies as a function of the parameters to be optimized criteria should be selected that enable simultaneous optimization of retention and selectivity. It is demonstrated that the result of an optimization process depends on the optimization criterion selected. Substances chromatographed: Metalaxy, pyridaphenthion, trademefon, thiobencarb on HPTLC silica with hexane - ethyl acetate in different compositions.

      Classification: 2e
      85 100
      The retention behavior of several semisynthetic cephalosporins in planar chromatography
      S. ERIC, D. AGBABA*, S. VLADIMIROV, D. ZIVANOV-STAKIC, (*Dept. of Pharm. Chem., Fac. of Pharmacy, Vojvode Stepe 150, P.O. Box 146, 11000 Belgrade, Serbia, Yugoslavia)

      J. Planar Chromatogr. 13, 88-92 (2000). TLC of cephalosporins (cephalexine, cefaclor, ceftriaxone, cefixime, cefotaxime) on silica gel developed with a variety of binary mobile phases containing different amounts of organic modifier. The influence of type, chemical character, and position of the substitution of functional groups (steric and structural effects) on the retention was of particular interest.

      Keywords:
      Classification: 2e, 32a