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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      100 057
      Sample preparation for TLC - genetic algorithm-based optimization of microwave-assisted extraction
      Sandra BABIC*, A. J. M. HORVAT, D. MUTAVDZIC, D. CAVIC, M. KASTELAN-MACAN (*Faculty of Chemical Engineering and Technology, Laboratory of Analytical Chemistry, Marulicev trg 19, 10000 Zagreb, Croatia;

      J. Planar Chromatogr. 20, 95-99 (2007). TLC of atrazine and simazine on silica gel with hexane - chloroform - acetone 12:5:3 with chamber saturation. Detection under UV light at 254 nm. Also quantitative evaluation. The genetic algorithm proved to be an optimization procedure which can be successfully applied to optimization of microwave-assisted extraction experiments. Application of recovery experiments from spiked soil.

      Classification: 29d
      104 001
      A review of analytical methods for the determination of aminoglycoside and macrolide residues in food matrices
      Tara MCGLINCHEY*, P.A. RAFTER, Fiona REGAN, D. GILLIAN, P. MCMAHON (*Department of Agriculture, Fisheries & Food, Central Meat Control, Backweston Laboratory Complex, Youngs Cross, Celbridge, Co., Kildare, Ireland)

      Anal. Chim. Acta 624 (1), 1-15 (2008). Aminoglycosides and macrolides are important antibiotics for veterinary medicine and are widely used in the treatment of bacterial disease, and as feed additives for growth promotion. As a result the European commission set strict criteria for monitoring residues and requires testing for low levels of aminoglycosides and macrolides in foods. Therefore the development of fast, reliable, and sensitive methods for the extraction and subsequent analysis of these antibiotics is of great interest. The review discusses analytical methods for both extraction and determination of antibiotics in various food matrices focusing on the last 10 years. Extraction and clean-up methods such as deproteinization and solid-phase extraction are described, and various screening methods including TLC, EI, CE, microbiological assays, and LC combined with MS are reviewed.

      Classification: 1, 28
      107 106
      Analysis of lycopene in nutritional supplements by silica gel high-performance thin-layer chromatography with visible-mode densitometry
      J.D. VASTA*, J. SHERMA (*Lafayette College, Department of Chemistry, Easton PA 18042-1782, USA)

      Acta Chromatographica 20(4), 673-683 (2008). Presentation of a quantitative method for the analysis of lycopene in nutritional supplements consumed to reduce the risk of prostate cancer and other forms of cancer and cardiovascular disease. HPTLC on silica gel with petroleum ether – dichloromethane 9:1. Quantification by densitometry at 416 nm. Four products containing 300 µg, 3 mg, 5 mg, or 10 mg lycopene plus other ingredients were quantified using a lycopene standard: the measured amounts ranged from 77.7 to 98.1 % of the stated label values. The accuracy by spiked blank analysis was within 1.90 % of theoretical values for the 3 mg softgels and 1.10 % of theoretical values for the 10 mg softgels. The precision of replicate analyses showed a RSD of 1.44 % for the 10 mg softgels and 2.39 % RSD for the spiked blank for the 3 mg softgels. The results obtained for Lycopene standards available from two other companies showed 55.6, 57.6, and 20.0 % of the minimum amount expected from the stated label values.

      Classification: 30b
      117 031
      New screening concept for pesticide residue analysis in fruit and vegetables – HTpSPE-HRMS
      Claudia OELLIG*, W. SCHWACK (*Institute of Food Chemistry, University of Hohenheim, 70599 Stuttgart, Germany,

      CBS 114, 13-15 (2015). To test the new HTpSPE–TOFMS screening, TLC of a pesticide mixture (acetamiprid, azoxystrobin, chlorpyrifos, fenarimol, mepanipyrim, penconazole, pirimicarb) in several plant matrices (cucumber, tomato, grape, apple extracts) on amino layer pre-treated by dipping in 2 % formic acid solution in acetonitrile and drying for 10 min. Development with 10 mL acetonitrile, migration distance 75 mm, drying 5 min; second development in the backwards direction with 10 mL acetone, migration distance 45 mm, drying 3 min. Detection under UV 254 nm, UV 366 nm and white light. For HTpSPE and μL-flow injection analysis–TOFMS the target analyte zone was eluted with the TLC–MS Interface into autosampler vials with acetonitrile – 10 mM ammonium formate 1:1, flow rate 0.2 mL/min, Elution time was 60 s. An HPLC system was coupled via a PEEK capillary and a nano-electrospray ionization interface to a TOFMS without an analytical column. The mean recovery for a pesticide mixture spiked into fruit and vegetable extracts was between 86 % and 116 % with %RSDs of 1.5–10 % (n = 5).

      Classification: 3a, 29, 37
      120 064
      Simultaneous determination of soyasaponins and isoflavones in soy (Glycine max L
      E. SHAWKY*, S.M. SALLAM (*Dep. of Pharm., Fac. of Pharm., Alexandria Univ., Alexandria 21521, Egypt,

      J. Chromatogr. Sci. 55 (10), 1059-1065 (2017). Presentation of a new high-throughput method for the simultaneous analysis of isoflavones and soyasaponins in soy (Glycine max L.) products by HPTLC on silica gel with ethyl acetate – methanol – water – acetic acid 100:20:16:1. Detection by treatment with anisaldehyde sulfuric acid reagent. Quantitative determination by densitometric multi-wavelength scanning at UV 265 nm for genistin, daidzin and glycitin and at 650 nm for soyasaponins I and III. The correlation coefficient of the linear calibration curve was >0.994. Intra-day precision (%RSD) of substances in matrix was between 0.7-0.9 %, inter-day precision (%RSD) was between 1.2-1.8 %). The method was suitable for the determination of the studied analytes in soy-based infant formula and soybean products.

      Classification: 7, 14
      56 127
      TLC and high-voltage-TLC of endotoxins and their derivatives

      Budapest Chromatography Symposium, June 13, 1985. Two-dimensional TLC on silica with 1) isopropanol - water - NH3 3:2:1, 2) isopropanol - water - triethylamine 3:2:1. Detection with orcinol-ferrichloride-sulfuric acid reagent. Partial hydrolysis of endotoxins with mild acids cleaves off non-toxic but beneficially active fragments. Fractionation of these components by TLC combined with high-voltage electrophoresis. In the first dimension TLC with isopropanol - acetic acid - water 5:1:5, followed by electrophoresis in pyridine - acetic acid - water 6:5:90 buffer.

      Classification: 28b
      57 146
      Detection of phosmethylan and its major metabolites by thin-layer chromatography
      K.G. HUBER

      J. Chromatogr. 303, 309-311 (1984). TLC of the. title compounds on silica with hexane - dioxane - acetic acid 79:20:1. Detection by spraying with chromogenic reagents including o-tolidine-Kl, p-dimethylaminobenzaldehyde and Pd chloride for the parent compound. Detection limit 0.5 mg.

      Classification: 29b
      58 114
      Rapid screening method for detection ofdeoxynivalenol

      J.A.O.A.C. 68, 1126-1128 (1985). TLC of deoxynivalenol (vomitoxin) on silica with ethyl acetate and chloroform - acetone - isopropanol 8:1:1. Detection by dipping in aluminium chloride solution and heating on a (preheated) hot plate for 5 min. and observation under UV 366 nm.

      Classification: 28b