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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      128 043
      Nutritional and phytochemical profiling of nutracereal finger millet (Eleusine coracana L.) genotypes
      U. NAKARANI, D. SINGH*, K. SUTHAR, N. KARMAKAR, P. FALDU, H. PATIL (*Department of Plant Molecular Biology and Biotechnology, ACHF, NAU, Navsari, Gujarat 396 450, India,

      Food Chem. 341, 128271 (2021). HPTLC of finger millet (Eleusine coracana L.) on silica gel with n-butanol - water - acetic acid 4:1:1. Detection by spraying with ninhydrin, followed by heating at 100 °C. Amino acid profiling under UV light at 546 nm. The hRF values for 21 standard amino acids ranged from 2 to 51.

      Classification: 18a
      127 052
      Pressurized planar electrochromatography of DNS amino acids derivatives in silica gel and silanized silica gel systems with formic acid addition to the water mobile phase
      A. CHOMICKI*, T. DZIDO (*Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a Str., 20-098 Lublin, Poland,

      J. Planar Chromatogr. 34, 105-111 (2021). HPTLC of dansyl derivatives of amino acids on silica gel (1) and RP-18 (2) with acetonitrile in the concentration range from 0 to 40 % in water - formic acid solution for (1) and acetonitrile in the concentration range from 10 to 85 % in water - formic acid solution for (2). Pressurized planar electrochromatography (PPEC) under the same conditions with polarization voltage 0.500 kV and separation time of 15 min. Detection under UV light. The separation selectivity is different between HPTLC and PPEC due to the electrophoretic effect in PPEC.

      Classification: 18a
      127 002
      Low temperature plasma probe mass spectrometry for analytes separated on thin-layer chromatography plates: direct vs. laser assisted desorption.
      X. GONG, D. ZHANG, I. B. EMBILE, Y. SHE, S. SHI, G. GAMEZ* (*Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA;

      J Am Soc Mass Spectrom 31(9), 1981-1993 (2020). Low-temperature plasma-mass spectrometry was studied for comparison between direct desorption (DD) and diode laser assisted desorption (LD) in terms of quantitative and qualitative analysis of compounds from cellulose vs. silica gel TLC layers. Compounds (the 20 common amino acids, propofol, nicotine, cotinine, salicylamide, acetylsalicylic acid, paracetamol, caffeine, valprolactone and its isomer 4-ene-valproic acid) were applied on the TLC plates (without development) at different concentrations; a commercial mixture of acetylsalicylic acid, paracetamol and caffeine was also applied on TLC plates, developed with dichloromethane – ethyl acetate 1:50, detection at UV 254 nm and quantitative MS. In general, DD provided good results on cellulose, where LODs where between 0.01 and 2.55 ng/mm2, whereas several compounds remained undetected on silica gel. LD however provided LODs on silica gel from 0.3 to 84 pg/mm2. Tandem MS with collision-induced dissociation was implemented to improve signals, LODs and to characterize the other analytical figures-of-merits (including detection of the main fragment ions, determination of optimal laser beam width and irradiance depending on the compounds). For the two metabolites of valproic acid, the ions and fragments had identical values; therefore, a mix of the two isomers had to be applied and separated with dichloromethane – methanol 50:1 before MS; one half of the plate was visualized for control by dipping into potassium permanganate reagent (7.5g KMnO4, 50g K2CO3, 0.75g NaOH in 1L water).

      Classification: 4e, 7, 8b, 11a, 18a, 22
      126 035
      Structure–retardation factor relationship of natural amino acids in two different mobile phases of RP-TLC
      S. YOUSEFINEJAD*, F. HONARASA, S. AKBARI, M. NEKOEINIA (*Research Center for Health Sciences, Department of Occupational Health Engineering, Institute of Health, School of Health, Shiraz University of Medical Sciences, Shiraz 71645, Iran,

      J. Liq. Chromatogr. Relat. Technol. 43, 580-588 (2020). Retardation factor (hRF) of 42 amino acids in two different eluents (acetonitrile - sodium azide and 1,2 dioxane-sodium azide solutions) were predicted by different quantitative structure-retention relationship (QSRR) methods. The method analyzed the effect of sum of geometrical distances between N and O in separation of amino acids in RP-TLC.

      Classification: 2c, 18a
      107 075
      Use of planar chromatography for the analysis of peptides from tryptic protein digest
      Susanne MINARIK, M. SCHULZ*, G. VAN BERKEL (*Merck KGaA, ABT. MM-LER-C, Frankfurter Str. 250, 64293 Darmstadt, Germany,

      CBS 106, 5-6 (2011). HPTLC on 1) ProteoChrom silica gel with 2-butanol – pyridine – ammonia 25 % – water 39:34:10:26; on 2) ProteoChrom cellulose with 2-butanol – pyridine – acetic acid – water 15:10:3:12 by two-dimensional development and on 3) silica gel with the developing solvent from 2). Detection by spraying with ninhydrin, fluorescamine, or triethylamine reagent. Evaluation under daylight and UV 366 nm. Detection by mass spectrometry by scanning the plate with a self modified desorption electrospray beam. In one-dimensional HPTLC up to 20 bands can be separated. By two-dimensional separation this number can be increased. Particularly suited are cellulose HPTLC plates.

      Classification: 18
      52 086
      One-dimensional chromatography for amino acids on small thin-layer cellulose sheets
      J. T. WU, T. MIYA, J. A. KNIGHT

      Clin. Chem. 29, 744-745 (1983). TLC of amino acids on cellulose with butanol - formic acid -water 12:3:5. Detection with ninhydrin.

      Classification: 18
      54 070
      TLC separations of amino acids on stannic tungstate

      J. Liquid Chromatogr. 6, 109-122 (1983). TLC of 24 amino acids on stannic tungstate with a) butanol (saturated with water)- acetic acid 3:1, b) acetone - formic acid-water 2:2:1. Detection with 0.2 % ninhydrin in butanol.

      Classification: 18
      66 094
      (HPTLC separation of enantiomeric tryptophan)

      Merck Spectrum 1989 18-19. HPTLC of D-tryptophan and L-tryptophan on „chiral“ silica (converted with C-18 silane and impregnated with copper salt and the „chiral selector“) with methanol – water acetone 50:50:30. Detection by spraying with ninhydrin followed by heating at 120°C for 5 min. Quantification by densitometry at 510 nm.

      Classification: 18