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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      130 004
      Identification of acetylcholinesterase inhibitors in water by combining two-dimensional thin-layer chromatography and high-resolution mass spectrometry
      Lena STÜTZ*, W. SCHULZ, R. WINZENBACHER (*Laboratory for Operation Control and Research, Zweckverband Landeswasserversorgung, Langenau, Germany; stuetz.l@lw-online.de)

      J Chromatogr A, 1624, 461239 (2020). Samples were chemical standards of acetylcholinesterase (AChE) inhibitors (azamethiphos, caffeine, donepezil, galanthamine, methiocarb-sulfoxide, paraoxon-ethyl) and of neurotoxic compounds, as well as drinking or contaminated water samples enriched through solid phase extraction. HPTLC on spherical silica gel (pre-washed twice by 20 min immersion in isopropanol, heated 20 min at 120 °C before and after pre-washing with acetonitrile). First separation (preparative TLC) with automated multiple development (16 steps). Effect-directed analysis for AChE inhibitors by immersion (speed 5 cm/s, time 1 s) into enzyme solution, incubation 5 min at 37 °C and immersion into substrate solution (indoxyl acetate 2 % in methanol); visualization under UV 366 nm. Active zones from untreated layers were eluted through the oval head of a TLC-MS interface to a second plate for a second separation with a panel of other mobile phases. Bands of interest were eluted from the second layer with water through the oval elution head of the TLC-MS interface pump, into a RP18 liquid chromatography guard column, followed by a quadrupole time-of-flight mass spectrometer. Full scan mass spectra (m/z 100–1200) were recorded in negative and positive modes using electrospray ionization (and collision-induced dissociation for MS2). Among the water contaminants, lumichrome (riboflavin photolysis product), paraxanthine and linear alkylbenzene sulfonates were identified as AChE inhibitors.

      Classification: 3d, 4d, 4e, 22, 29b, 35d, 37c
      129 068
      Thai mango and pineapple puree and juice analyzed by high-performance thin-layer chromatography hyphenated with effect-directed assays
      Gertrud E. MORLOCK*, N. WUTTHINITHISANAND, D. RAUHUT
      (*Institute of Nutritional Science, and Interdisciplinary Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Giessen, Germany; gertrud.morlock@uni-giessen.de)

      Molecules, 26 (24), 7683 (2021). Samples were ultrasound-assisted extracts of fruit puree and juice (pre-treated with sulfur dioxide or ascorbic acid) of Ananas comosus (Bromeliaceae) and Mangifera indica (Anacardiaceae). HPTLC on silica gel with toluene – ethyl acetate – methanol – formic acid 120:90:35:3. Detection under white light, UV 254 nm and 366 nm, before and after  derivatization by immersion (2 s, 3 cm/s) into anisaldehyde sulfuric acid reagent and  diphenylamine aniline reagent, followed by heating at 110 °C for 5 min. Effect-directed analysis using automated immersion: A) for free radical (DPPH•) scavengers; B) for enzymatic inhibition (acetyl-cholinesterase, tyrosinase); C) for activity against Gram-negative (Aliivibrio fischeri bioluminescence assay) or Gram-positive bacteria (Bacillus subtilis bioassay). Active compounds were far more present in puree than in juice extracts, and differences were also seen between cultivars. Ascorbic acid (hRF 37), used as additive for the mango puree, was active as antioxidant and as transiently disruptive for A. fischeri metabolism and bioluminescence.

      Classification: 27, 32e, 35b
      70 206
      (Determination of benzoic acid and miconazole nitrate in paint by thin-layer chromatography
      ZH. QIAN (Qian Zhenrong), W. YAN (Yan Wei), Y. HE (He Ya), G. LU (Lu Guochun), (Huashan Hosp., Shanghai Med. Univ., Shanghai 200040, P.R. China)

      Chinese J. Hosp. Pharm. (Zhongguo Yoydan Yaoxue Zazhi) 11, 435-437 (1991). TLC of benzoic acid and miconazole nitrate on silica with hexane - chloroform - methanol - diethylamine 42:21:13:5. Quantification by densitometry at 220 nm.

      Classification: 32c, 35
      97 161
      Analysis of phthalates in plastic food-packaging bags by Thin Layer Chromatography (Chinese)
      H. CHEN (Chen Hui)*, Y. WANG (Wang Yuan), R. ZHU (Zhu Ruohua) (*Chem. Dep., Beijing Norm. Univ., Beijing 100001, China)
      Chinese J. Chromatogr. (Sepu) 24 (1), 69-72 (2006). TLC of dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP) and di (2-ethylhexyl) phthalate (DEHP) in plastic food-packaging bags. Extraction with ethanol by ultrasonication, followed by filtration through a membrane of 0.45 µm. Development with ethyl acetate - anhydrous ether - isooctane 1:4:15 on silica gel. Quantitative determination by densitometry at 275 nm (reference wavelength 340 nm) by use of an external standard. Good linearities were obtained for DMP, DEP, DBP and DEHP. The detection limits were 2.1 ng for DMP, 2.4 ng for DEP, 3.4 ng for DBP and 4.0 ng for DEHP. The relative standard deviations of the four phthalates were 2.8-3.5 %. The recoveries of the four phthalate standards in real sample were 79-111 %. The method presented has the advantages of high precision, high sensitivity, small sample size, and simple pretreatment. The contents in real samples were close to the results by gas chromatography.
      Classification: 35
      58 202
      Interaction of some non-ionic tensides with dioleoylphosphatidyl choline, studied by charge-transfer chromatography
      T. CSERHATI, M. SZOGYI, L. GYORFI

      J. Chromatogr. 349, 295-300 (1985). Study on the interaction of the membrane phospholipid, dioleylphosphatidyl choline with 23 nonionic tensides by charge-transfer. Reversed-phase TLC on cellulose with water - ethanol 12:13. Exposure of the chromatogram to iodine vapor. Discussion of the dependence of the lipophilicity of dioleoyl phosphatidyl choline on tenside concentration of eluent.

      Keywords:
      Classification: 11c, 35a
      70 202
      (Determination of ethoxylate oligomer distribution in polyethylene surfactants by thin-layer chromatography
      SH. GUO (Gou Shengjun), L. ZHANG (Zhang Lufang), (Petrol. Univ., East China, Dongying, Shandong 257062, P.R. China)

      Chinese J. Chromatogr. (Sepu) 10, 295-297 (1992). Determination of the number of ethylene oxide and its distribution in four oxyethylenated anionic surfactants by TLC and field desorption MS. Comparison of the results obtained by one-dimensional TLC to those obtained by two-dimensional TLC, and of the results obtained by TLC to those obtained by field desorption MS.

      Classification: 35a
      88 188
      Coupling of TLC and FTIR in the analysis of cyanoethylation products of polyethoxylated (n = 3-20) superior alcohols (C12-C18)
      C. JIANU*, E. ALEXA, C. CIOBANU, I. JIANU, (*Banat's Univ. of Agr. Sci. Timisoara, Calea Aradului, nr. 119, 1900 Timisoara, Romania)

      Proc. Intern. Symp. on Planar Separations, Planar Chromatography 2001, pp. 241-250. Preparative TLC of b-alkyl-polyethyleneoxy-propionitrile derivatives on silica gel with e.g. perchloroethylene and acetone. Visualization with 2% iodine reagent. IR analysis after removal of the compound-containing sorbent and extraction as KBr tablet or solution.

      Keywords:
      Classification: 35a
      59 208
      Fate of antioxidants and antioxidant derived products in deep-fat frying and cookie baking
      C.R. WARNER, D.H. DANIELS, F.S.D. LIN, F.L. JOE, T. FAZIO

      J. Agric. Food Chem. 34, 1-5 (1986). TLC separation of DHDP (3,3'-bis (1,1-dimethylethyl)-5,5'-dimethoxy-1,1'-biphenyl-2,2'-diol) on silica with dichloromethane - methanol - acetic acid 80:20:1 and hexane - benzene - ether 90:30:3. After cutting the plate into portions, determination of (14C) compounds by liquid scintillation; detection by autoradiography.

      Classification: 35b