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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      101 098
      Silica thin-layer chromatographic studies of surfactants with mixed aqueous-organic eluents containing thiourea
      A. MOHAMMAD*, S.A. BHAWANI (*Analytical Research Laboratory, Department of Applied Chemistry, Faculty of Engineering & Technology, Aligarh Muslim University, Aligarh 202 002, India)

      J. Chromatogr. Sci. 46 (4), 298-303 (2008). HPTLC of three surfactants, cetyltrimethylammonium bromide (CTAB), dodecyltrimethylammonium bromide (DTAB), and polyoxyethylene (20) sorbitan monolaurate (Tween 20), on silica gel with 5 % aqueous thiourea - acetone - methanol 3:1:1. Evaluation of the effect of the carbon chain length of alcohols (methanol, ethanol, n-propanol, and n-butanol) on the mobility of these surfactants. The comparative study was performed with sulfur- (thiourea) and oxygen- (urea) containing compounds in the eluent. Investigation of the interference on the resolution of the mixture of CTAB, DTAB, and Tween 20, due to presence of metal cations as impurities.

      Classification: 35a
      102 030
      Analytical and densitometric evaluation of visualizing reagents of selected aliphatic compounds on thin layer
      Alina PYKA*, W. KLIMCZOK (*Faculty of Pharmacy, Department of Analytical Chemistry, Medical University of Silesia, 4, Jagiellonska Str., 41-200 Sosnowiec, Poland; apyka@slam.katowice.pl)

      J. Liq. Chromatogr. Relat. Technol. 31, 1492-1510 (2008). TLC of stearic acid, stearyl alcohol, and methyl stearate on silica gel (prewashed with methanol) with methanol - chloroform 1:1 followed by drying for 24 h at room temperature. Six new derivatization reagents were evaluated: gentian violet, methylene violet, methylene blue, methyl green, malachite green, and Janus blue. Detection by dipping for 5 s, followed by drying for 24 h at room temperature. Quantitative determination by absorbance measurement. The results obtained indicate that all of the new derivatization reagents give better results than the universally applied Rhodamine B. The best reagents for quantitative determination of stearic acid are methylene blue and Janus blue, for stearyl alcohol malachite green and Janus blue, and for methyl stearate methylene blue, Janus blue, and malachite green.

      Classification: 11a
      102 073
      Analysis of vitamin B 12 in food by silica gel 60 TLC and bioautography with vitamin B 12-dependent Escherichia coli 215
      Y. TANIOKA, Y. YABUTA, E. MIYAMOTO, H. INUI, F. WATANABE* (*School of Agricultural, Biological, and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan; watanabe@muses.tottori-u.ac.jp)

      J. Liq. Chromatogr. Relat. Technol. 31, 1977-1985 (2008). TLC of vitamin B 12 and dicyanocobinamide on silica gel with 2-propanol - 28 % ammonia - water 7:1:2 in the dark at room temperature. After drying the plate was overlaid with 1.5 % agar containing a basal medium and a small volume of E. coli 215 culture, and then incubated at 30 °C for about 20 h. After spraying with a methanolic solution of 4 % 2,3,5-triphenyltetrazolium salt the plate was heated at 30 °C for 1 h. The method was applied to detect vitamin B12 or inactive corrinoids in foods.

      Classification: 27
      102 131
      Thin-layer chromatography-densitometric analysis of alpha-mangostin content in Garcina mangostana fruit rind extracts
      W. POTHITIRAT, W. GRITSANAPAN* (*Mahidol University, Department of Pharmacognosy, Faculty of Pharmacy, 447 Sri-Ayudhaya Rd, Ratchatewi, Bangkok 10400, Thailand; pywgs@mahidol.ac.th)

      J. AOAC Int. 91, 1145-1148 (2008). TLC of alpha-mangostin on silica gel with dichloromethane - methanol 24:1 in a saturated twin-trough chamber. Quantitative determination by absorbance measurement at 320 nm.

      Classification: 32e
      103 022
      Analysis of stem cell lipids by offline HPTLC-MALDI-TOF MS
      Beate FUCHS, J. SCHILLER*, Rosmarie SÜSZ, M. ZSCHARNACK, A. BADER, P. MÜLLER, M. SCHÜRENBERG, M. BECKER, D. SUCKAU (*Faculty of Medicine, Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstrasse 16–18, 04107 Leipzig, Germany, juergen.schiller@medizin.uni-leipzig.de)

      Anal. Bioanal. Chem. 392, 849-860 (2008). HPTLC of cell lipids on silica gel with chloroform - ethanol - water - triethylamine 5:5:1:5. Detection under UV 366 nm after spraying with primuline (Direct Yellow) reagent. Coupling with MALDI-TOF-MS which is traditionally used for proteomics, but is also a useful tool for lipid analysis. Depending on the applied matrix, however, some lipid classes are more sensitively detected than others and this may even lead to suppression effects if complex mixtures are analyzed. Therefore, a previous separation into the individual lipid classes is necessary. Using artificial lipid mixtures or easily available tissue extracts, it has already been shown that lipids can be conveniently analyzed by MALDI-TOF MS directly on the TLC plate. An initial TLC-MALDI-TOF-MS study of the lipid composition of ovine mesenchymal stem cells is presented. Due to the complex composition of these cells, data are also compared to lipids extracted from human erythrocytes. Even very minor lipid classes can be easily detected and with much higher sensitivity than by common staining protocols.

      Classification: 4e, 11c
      103 056
      Using electrospray-assisted laser desorption/ionization mass spectrometry to characterize organic compounds separated on thin-layer chromatography plates
      S. LIN (Lin Shuyao), M. HUANG (Huang Minzong), H. CHANG (Chang Huichiu), J. SHIEA (Shiea Jentaie)* (*Department of Chemistry, National Sun Yat-Sen University, Kaohsiung Medical University Joint Research Center, Kaohsiung, 80424 Taiwan; jetea@mail.nsysn.edu.tw)

      Anal. Chem. 79, 8789-8795 (2007). TLC of dyes, amines, extracts of drug tablets (erythoxine B, erioglaucine, fast green FCF, 2,2’-diaminodiethylamine, 3-quinolinamine, 2-acetylaniline; tablets containing DL-methylephedrin hydrochloride, caffeine, ethoxybenzamide, chlorpheniramine maleate, noscapine, acetaminophen) on RP-18 with 500 mM ammonium acetate - acetone 7:3. Separation of amines on silica gel with ethyl acetate - acetic acid - dichloromethane 98:1:1. The detection limit of TLC/ELDI/MS is 1 µM.

      Classification: 17
      103 086
      Two-dimensional thin-layer chromatography of structural analogs
      L. CIESLA, A. PETRUCZYNIK, M. HAJNOS, A. BOGUCKA-KOCKA, Monika WAKSMUNDZKA-HAJNOS* (*Department of Inorganic Chemistry, Medical University, 20-081 Lublin, Poland; monika.hajnos@am.lublin.pl)

      Part I: Graft TLC of selected coumarins. J. Planar Chromatogr. 21, 237-241 (2008). HPTLC of coumarins (present in extracts of Archangelica officinalis, Pastinaca sativa and Heracleum sphondylium fruits) on cyano phase with acetonitrile - water 3:7 (triple development) in the first dimension, and on silica gel with ethyl acetate - n-heptane 7:13 (triple development) in the second dimension. Good selectivity differences were also obtained on silica gel with ethyl acetate - n-heptane 7:13 (triple development) in the first dimension and on RP-18 phase with methanol - water 11:9 (triple development) in the second dimension. Detection and quantitative determination by fluorescence measurement at 366 nm.

      Classification: 32e
      103 117
      Application of a new technique in two-dimensional TLC separation of multicomponent mixtures
      G. MATYSIK, Agnieszka SKALSKA-KAMINSKA*, B. STEFANCZYK, M. WÓJCIAK-KOSIOR, D. RAPA (*Department of Chemistry, Laboratory of Planar Chromatography, Medical University, Staszica 6, 20-081 Lublin, Poland; agnieszkask@wp.pl)

      J. Planar Chromatogr. 21, 233-236 (2008). Connection of two-dimensional chromatography with multiple gradient development. 2D HPTLC of anthraquinone derivatives (1,8-dihydroxyanthraquinone, franguloemodin A, aloeemodin, rhein, frangulin A, aloin, sennoside B) on silica gel. Bandwise application at the right and left corner of the plate, then development by use of multiple gradient development [G. Matysik, Chromatographia 43, 39-41 (2004)], e.g. for step 1 hexane - dichloromethane 1:1, for step 2 (hexane - dichloromethane - ethyl acetate - 80 % formic acid 50:40:10:1) and for step 3 hexane - dichloromethane - ethyl acetate - methanol - formic acid 40:40:20:5:1. After drying the plate was developed from the left and right edge with hexane - dichloromethane - formic acid 60:40:1 for step 1 and with hexane - dichloromethane - ethyl acetate - formic acid 60:35:5:1 for step 2. Quantitative determination by absorbance measurement at 440 nm. Deteciton of anthranoids in daylight and after derivatization with 10 % potassium hydroxide in methanol.

      Classification: 32e
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