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
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      107 154
      Analysis of biodiesel conversion using thin-layer chromatography and nonlinear calibration curves
      S.N. FEDOSOV*, J. BRASK, X. XU (*Dept. Molecular Biology, Aarhus Univ., Science Park, Gustav Wieds Vej 10C, 8000 Aarhus C, Denmark)

      J. Chromatogr. A 1218 (19), 2785-2792 (2011). Examination of the applicability of TLC for the analysis of biodiesel conversion. Biodiesel is a complex mixture which complicates the analytical separation and requires a large set of data for understanding reaction kinetics. A flame ionization detector (FID) and a modified TLC staining procedure were evaluated in comparison with the well-established but time-consuming and expensive GC and HPLC methods. The TLC staining method is suited for quantitative analysis due to no background. Demonstration by using several experimental samples produced by enzymatic conversion of rapeseed oil to biodiesel. It was found that the first reaction step (6 h) resulted in 85–95 % conversion and the second step (after removal of glycerol and water) increased the yield to 97–98 %. All components of the mixtures were separated and quantified. Relation of the biodiesel contents measured by TLC and GC gave the values of 1.03 ± 0.07 (TLC-staining) and 0.95 ± 0.04 (TLC–FID), which indicated the applicability of the TLC methods.

      Classification: 35
      78 102
      Separation of optical brighteners for plastics and migration into water and olive oil
      B. ILIANO, A.M. OUDAR, J. GOSSELE, (Ministry of Public Health, Inst. of Hyg. and Epidemiology, Dept. of Pharmaco-Bromatology, Brussels, Belgium)

      Deut. Lebensm. Rundschau 91, 205-208 (1995). HPTLC of optical brighteners (Leucopur, Azur 4, Azur 5, Hostalux ABC, Uvitex, Eastobrite) on RP-18 with acetonitrile - dichloromethane 19:1, acetonitrile - water 19:1 and methanol - water 97:3. The organic mixture showed better separation than the aqueous phases. Detection under UV.

      Keywords:
      Classification: 30, 35
      112 136
      Thin-layer chromatographic monitoring of sonolytic degradation of surfactants in wastewaters
      I. REZIC (Laboratory of Analytical Chemistry, Department of Applied Chemistry, Faculty of Textile Technology, University of Zagreb, Croatia, iva_rezic@net.hr)

      J. Planar Chromatogr. 26, 96-101 (2013). HPTLC of cetylpyridinium chloride (1), sodium dodecyl sulfate (2) and Triton X-100 (3) on silica gel with methanol - water 1:1. Quantitative determination by absorbance measurement at 254 nm. The hRf values for (1) to (3) were 6, 74 and 91, respectively. Linearity was in the range of 170-1740 µg/zone for (1), 250-1980 µg/zone for (2) and 160-1640 µg/zone for (3). LOQ was 75 ng/zone for (1), 90 ng/zone (2) and 65 ng/zone for (3).

      Classification: 35a
      61 257
      (Quantitative analysis of sucrose fatty acid esters by thin-layer chromatography
      Q. DENG (Deng Qinying), K. LI (Li Kaozheng), X. SUN (Sun Xiaowei), (Dep. Chem., Zhongshan Univ., Guangzhou, P.R. China)

      J. China Assoc. Inst. Anal. 6, 19-22 (1987) (Fenxi Ceshi Tongbao). TLC on silica with chloroform - methanol - acetic acid - water 80:10:8:2. Detection by exposing to iodine vapour. Quantification by densitometry at 520 nm.

      Classification: 11a, 35a
      73 169
      Separation of different types of surfactants by thin-layer chromatography
      A. KRUSE, N. BUSCHMANN*, K. CAMMANN, (Dept. of Anal. Chem., Westfäl. Wilhelms Univ., Wilhelm-Klemm-Str. 8, D-48149 Münster, Germany)

      J. Planar Chromatogr. 7, 22-24 (1994). TLC of surfactants (anionic, cationic, non-ionic, amphoteric) by four-fold development on silica with 1. methanol - 2 N NH3 3:1, 2. THF - acetone 1:9, 3. chloroform - methanol 9:1, 4. chloroform - methanol - 0.1 N sulfuric acid 80:19:1. Visualization by dipping in Dragendorff's reagent. The reliability of the method has been tested for 16 surfactants, for which the Rfs are reported.

      Classification: 35a
      106 179
      Chromatographic behavior of food additives on thin layers of titanium(IV) silicate ion-exchanger
      V. GHOULIPOUR, S. AMINI, A. HAGHSHENAS, S. WAQIF-HUSAIN* (*Chemistry Department, Faculty of Science, Science and Research Branch, Islamic Azad University, P. O. Box 14515-775, Poonak-Hesarak, Teheran, Iran; syedwaqifhusain@yahoo.com)

      J. Planar Chromatogr. 23, 250-254 (2010). TLC of 30 food additives (aldehydes, organic acids, esters and alcohols, and various sodium salts) on titanium(IV)silicate ion-exchanger with 10 different mobile phases: e. g. methanol, heptane - diethylether 4:1, aqueous ammonia - methanol - ethyl acetate 1:3:6, methanol - aqueous ammonia 9:1, methanol - ethanol 17:3, 0.5 M ammonium sulfate solution, 0.25 M, 0.5 M and 0.1 M potassium bromide solution, and phosphate buffer pH 2.5 in a twin-trough chamber without chamber saturation. Detection by spraying with 1 % iron chloride solution, 0.5 % potassium permanganate and 3 % barium chloride solution 1:1, 1 % ninhydrin in ethanol, 2 % phosphomolybdic acid in ethanol, and 5 % potassium dichromate in concentrated sulfuric acid. The study shows that the quality of separation depends to a large extent on the mobile phase, and selectivity is achieved by varying the composition of the mobile phase.

      Classification: 35b
      62 266
      Determination of preservatives in cosmetic products 1
      N. DE KRUIJF, M.A.H. RIJK, L.A. PRANOTO-SOETARDHI, A. SCHOUTEN, (TNO-CIVO Food Anal. Inst., Dep. Toxicol. Anal., P.O. Box 360, 3700 AJ Zeist, The Netherlands)

      Thin-layer chromatographic procedure for the identification of preservatives in cosmetic products. J. Chromatogr. 410, 395-411 (1987). TLC of 88 preservatives on silica and alumina with ethyl acetate - diisopropyl ether - 96% ethanol - 25% NH3 55:30:10:2. Detection under UV 254 nm and by spraying with six reagents. Investigation of the retention behavior and the detectability of the preservatives, of which 74 were characterized. Detection limit, in the concentration range of 0.1%.

      Classification: 35b
      82 035
      Stabilization of butter with deodorized rosemary extract
      Z. ZEGARSKA*, R. RAFALOWSKI, R. AMAROWICZ, M. KARAMAC, F. SHAHIDI, (*Inst. of Human Nutr., Acad. of Agr. and Techn., PL-10-957 Olsztyn, Poland)

      Z. Lebensm. Unters. Forsch. 206, 99-102 (1998). TLC of phenolic compounds on silica gel with a mixture of chloroform - methanol - water 63:35:10. Visualization by spraying with a solution of ferric chloride and potassium ferricyanide. Compounds with antioxidative activity were visualized after spraying with a solution of b-carotene and linoleic acid and observing the delay in bleaching of the b-carotene.

      Keywords:
      Classification: 7, 35b