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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      133 001
      Quantitative analysis of three synthetic cannabinoids by densitometric high‑performance thin‑layer chromatography
      B. DUFFAU*, D. MORALES, L. QUIÑELEM (*Institute of Public Health, Santiago de Chile, Chile, bduffau@ispch.cl)

      J. Planar Chromatogr. 36, 433-438 (2023). HPTLC of synthetic cannabinoids AM2201 (1), CP-47,497 (2), and JWH-018 (3) in seized samples on silica gel with cyclohexane - diethylamine 9:1. Quantitative determination by absorbance measurement at 280 nm for (2) and 315 nm for (1) and (3). The hRF values for (1) to (3) were 26, 73 and 55, respectively. Linearity was between 2 and 14 µg/zone for (3), 5 and 35 µg/zone for (1) and 50 and 350 µg/zone for (2). The intermediate precision was 23.0 % for (1), 16.6 % for (2) and 7.5 % for (3). The LOD and LOQ were 5.6 and 16.9 µg/zone for (1), 0.7 and 2.2 µg/zone for (2) and 1.9 and 5.6 µg/zone for (3). Average recovery was 84.0 % for (1), 105.1 % for (2) and 107.1 % for (3).

      Classification: 23e
      132 010
      Establishment of anti-asialo-GM1 rabbit monoclonal antibodies capable of reducing natural killer cell activity in mice
      T. KIMURA*, S. OHTA, H. MURAYAMA (*Diagnostic Division, Yamasa Corporation, Choshi, Chiba, Japan; kimura@yamasa.com)

      PLoS ONE 18(10), e0292514 (2023). Samples were 8 glycolipids, either sialylated or not; the two main examples were monosialotetrahexosylganglioside (GM1) and gangliotetraosylceramide (= asialo-GM1 = ASGM1). TLC on silica gel with chloroform – methanol – water – acetic acid 300:200:30:1, followed by air-drying. Visualization of glycolipids by spraying 5-methylresorcinol solution (0.2 % in 2 M sulfuric acid), followed by 5 min heating at 110°C. For immunostaining, underivatized chromatograms were immersed into a blocking gel (1% gelatin, 1% polyvinylpyrrolidone and 1mM EDTA in phosphate-buffered saline solution (PBS)), followed by immersion into a solution of monoclonal (50 ng/mL) or polyclonal (1:1,000) anti-ASGM1 antibodies purposedly produced in rabbits. After 1h reaction at room temperature, the layers were washed thrice with T-PBS (0.05 % Tween 20 in PBS) and horseradish-peroxidase-conjugated anti-rabbit IgG (1:40,000) was added. After washing thrice with T-PBS, the TLC sheets were incubated in substrate solution (tetramethylbenzidine). Blue spots indicated the glycolipids bound by the antibody. In this TLC assay, each of the five monoclonal antibodies (as well as the polyclonal serum) was specific to ASGM1 (unsialylated), whereas in ELISA (enzyme-linked immunosorbent assay) at the same concentrations three of them displayed partial cross-reactivity towards GM1, GM3 or GD1b, which are sialylated glycolipids. 

      Classification: 4e, 10b, 11
      131 015
      Non‑target estrogenic screening of 60 pesticides, six plant protection products, and tomato, grape, and wine samples by planar chromatography combined with the planar yeast estrogen screen bioassay
      A. MEHL, S. SEIFERLING, Gertrud MORLOCK* (*Institute of Nutritional Science, Chair of Food Science, and Interdisciplinary Research Center, Justus Liebig University Giessen, Heinrich‑Buff‑Ring 26‑32, 35392 Giessen, Germany, gertrud.morlock@uni-giessen.de)

      Anal. Bioanal. Chem. https://doi.org/10.1007/s00216-023-04605-x (2023). HPTLC of 60 pesticides (1), six plant protection products (2), tomato (3) and grape and wine samples (4) on silica gel with n-hexane - ethyl acetate 5:1, n-hexane - toluene - ethyl acetate 4:1:1 for (2), n-hexane - toluene - ethyl acetate 5:1:1 for (3) and n-hexane - ethyl acetate 5:1 for (4). Documentation in fluorescence mode at 366 nm. pYES bioassay application by dipping into a citrate phosphate buffer, followed by drying and dipping into yeast cell suspension, followed by incubation at 30 °C for 3 h. After drying, the chromatogram was immersed into a MUG solution, followed by incubation at 37 °C for 1 h. Detection at FLD 366 nm/ > 400 nm.

       

      Classification: 29
      131 016
      Screening bisphenols in complex samples via a planar Arxula adeninivorans bioluminescence bioassay
      M. JABER, M. JÄHNE, M. OBERLE, Gertrud MORLOCK (*Institute of Nutritional Science, Chair of Food Science, and TransMIT Center for Effect‑Directed Analysis, Justus Liebig University Giessen, Heinrich‑Buff‑Ring 26‑32, 35392 Giessen, Germany, gertrud.morlock@uni-giessen.de)

      Anal. Bioanal. Chem. https://doi.org/10.1007/s00216-023-04820-6 (2023). HPTLC of bisphenols in complex mixtures such as six tin can migrates (1), five thermal papers (2), and eleven botanicals (3) on silica gel with toluene - ethyl acetate 6:1 for (1), n-hexane - ethanol - ethyl acetate 40:3:3 for (2) and ethyl acetate - toluene - methanol - water 16:4:3:2 for (3). Documentation under white light illumination, UV 254 nm and FLD 366 nm. Biological detection by spraying with Arxula adeninivorans yeast cell suspension, followed by incubation at 37 °C for 2 h. After drying in a cold stream, the plate was sprayed with the luciferin substrate solution and bioluminiscence was recorded.  

       

      Classification: 7
      131 039
      Radiometric strategy to track nanopesticides: An important approach to understand the fate, mechanisms of action and toxicity
      Vanessa TAKESHITA*, G. MUNHOZ, A. ESPIRITU, V. LUIZ, L. FERNANDES (*Center of Nuclear Energy in Agriculture, University of Sao Paulo, Av. Centenario 303, 13416-000, Piracicaba, SP, Brazil, vanessatakeshita@usp.br)

      Trends Anal. Chem. 165, 117156 (2023). Review of the use of radiolabeled pesticides to track nanoformulations in biological and environmental scenarios and the application of TLC for evaluating the mobility and degradation of pesticides and nanopesticides. The paper described TLC as tool to quantify the metabolites generated in the biodegradation study.

      Keywords: HPTLC review toxicology
      Classification: 1b, 29f
      131 062
      High‑performance thin‑layer chromatography analysis of industrial bamboo tableware for genotoxins, melamine and formaldehyde
      D. MEYER, Gertrud MORLOCK* (*Institute of Nutritional Science, Chair of Food Science, Justus Liebig University Giessen, Heinrich‑Buff‑Ring 26–32, 35392 Giessen, Germany, gertrud.morlock@uni-giessen.de)

      J. Planar Chromatogr. 36, 71-76 (2023). HPTLC of melamine (1), formaldehyde (2) and genotoxins (3) in bamboo tableware on silica gel with iso-propanol - ethyl acetate - water 10:5:6 for (1), chloroform - dichloromethane - diethyl ether 4:5:6 for (2) and (3). Genotoxin analysis by spraying with Salmonella suspension followed by spraying FDG substrate solution and incubation at 37 °C for 15 min. Qualitative analysis at 254 nm and densitometric absorption measurement at 202 nm for (1) to (3).

      Classification: 9, 17a
      131 073
      Detection of amitraz, a formamidine‑based pesticide using chromogenic spray reagent by thin‑layer chromatography
      K. MULANI*, S. KHILLARE, S. GHUMATKAR, R. JAGTAP (*Directorate of Forensic Science Laboratories, Mumbai, MS 400098, India, kbchemorg@gmail.com)

      J. Planar Chromatogr. 35, 643-646 (2022). HPTLC of amitraz in visceral tissue on silica gel with hexane - acetone 4:1. Detection by spraying with 10 % sodium hydroxide solution, followed by heating at 80 °C for 10 min. The plate was then removed and kept for attaining room temperature, followed by spraying with freshly prepared sodium nitrite (1%) in acidic media. Right after, alkaline solution of curcumin (1% in sodium hydroxide solution) was sprayed. The hRF value for amitraz was 63. 

      Classification: 29f
      131 078
      Validated screening method for 81 multiclass veterinary drug residues in food via online-coupling high-throughput planar solid-phase extraction to High-Performance Liquid Chromatography−Orbitrap Tandem Mass Spectrometry
      A. MEHL, L. HUDEL, M. BÜCKER, Gertrud MORLOCK* (*Institute of Nutritional Science, Chair of Food Science, and Interdisciplinary Research Center, Justus Liebig University Giessen, 35392 Giessen, Germany, gertrud.morlock@uni-giessen.de)

      J. Agric. Food. Chem. 70, 10886-10898 (2022). HPTLC of 81 veterinary drugs from 6 different groups (glucocorticoids, anthelmintics, antiparasitics, coccidiostats, nonsteroidal anti-inflammatory drugs, and antibiotics) in 4 different matrices (honey, pig muscle, cow milk, and chicken eggs) on silica gel with acetonitrile - ammonia - ethanol 13:4:3 up to 80 mm and then in the reverse direction with methanol - acetonitrile - ethanol - ammonia 6:2:1:1 up to 45 mm. After each step, the plates were automatically dried in a cold stream of air for 3 min. Detection under UV light at 254 nm and fluorescence light detection (FLD) at 366 nm. Zones were eluted from the plate using a fully automated auto TLC-LC-MS interface for further analysis by high-resolution tandem mass spectrometry. Most veterinary drugs except penicillins and cephalosporins were detected at the 5 μg/kg level in pig muscle, cow milk, and chicken eggs and 25 μg/kg level in honey.

      Classification: 4d, 28a