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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      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
      54 135
      Separation and quantitation of anionic, cationic and nonionic surfactants by TLC
      D. ARMSTRONC, G. STINE

      J. Liquid Chromatogr. 6, 23-33 (1983). TLC of cetyltrimethylammonium bromide, cetylpyridinium chloride, cetyltrimethylammonium chloride, dodecylamine, octadecylamine, sodium dodecylsulfone, dodecylbenzenesulfonate, sodium dioctylsulfosuccinate, sodium laurate, Triton X-100, Surfynol 405, Igepal Co-530 on silica, RP-18, silica with RP strip with a) for anionic surfactants: dichloromethane - methanol 8:1, cationic surfactants: dichloromethane - methanol - acetic acid 8:1:0.75, nonionic surfactants: ethanol -20 % sodium tetraphenylborate 8:2. Detection with iodine vapor. Densitometry at 215 nm.

      Keywords:
      Classification: 35
      87 163
      (Application of thin-layer chromatography in process of preparation of sucrose-6-benzoic ester
      Y. WEI (Wei Yi)*, Y. ZHANG (Zhang Ying), H. SU (Su Hui), J. KIAO (Liao Jingyang), L. GUO (Guo Lin), (*Dept. Chem. Eng., Guangxi Inst. Technol., Linzhou 545005, P.R. China)

      Chin. J. Anal. Lab. (Fenxi Shiyanshi) 19 (5), 5-8 (2000). TLC on silica gel with tetrahydrofuran - acetone - water - acetic acid 8:12:10:1. Detection 1) under UV 254 nm and 365 nm, 2) by exposure to iodine vapor, 3) by spraying with 10% sulfuric acid in ethanol. Monitoring the reaction process by finger print technique of the reactants, mediates and products.

      Keywords:
      Classification: 35
      118 093
      Aneurinifactin, a new lipopeptide biosurfactant produced by a marine Aneurinibacillus aneurinilyticus SBP-11 isolated from Gulf of Mannar – Purification, characterization and its biological evaluation
      S. BALAN, C. KUMAR*, S. JAYALAKSHMI (*Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India, cgkumar@iict.res.in)

      Microbiol. Res. 194, 1-9 (2017). TLC of lipopeptide biosurfactant produced by the marine Aneurinibacillus aneurinilyticus SBP-11 on silica gel with 96 % ethanol – water 7:3 for peptides, chloroform – acetic acid – water 6:3:1 for sugars and chloroform – methanol – water 65:25:4 for lipids. Detection by spraying with ninhydrin reagent for peptides, anthrone reagent for sugars and rhodamine B reagent for lipids. The hRF values for peptides and lipids were 73 and 45, respectively.

      Classification: 35a
      67 238
      (Analysis of various detergents
      K. YAGAMI, M. HAYAKI, Y. SATOU, N. YAMADA, Y. KOGA, M. OKADA, (Fac. Living Sci., Kumamoto, Japan 862)

      II. Quantitative determination of surfactant components in chromatography.) (Japanese). Japanese Oil Chem. (Yukagaku) 39, 340-345 (1990). Two-dimensional TLC of surfactant components in detergents on silica with ethyl acetate for the 1st direction and chloroform for the 2nd. Detection by charring. Quantification by densitometry. R.S.D. 1.4 - 2.0%. Comparison of the TLC method with extraction/optical density method.

      Classification: 35a
      81 139
      Composition analysis of detergents of the polyoxyethylene type
      G.A. CUMME, E. BLUME, R. BUBLITZ, H. HOPPE, A. HORN*, (*Friedrich-Schiller Univ., Klinikum. Inst. Biochem., D-07740 Jena, Germany)

      J. Chromatogr. A 791, 245-253 (1997). Determination of single polymer species of non-ionic detergents of the polyoxyethylene type by MALDI-MS. Separation of single polymer species by TLC on silica gel with ethyl acetate - isooctane - acetic acid - water 13:2:3:10, and RPC methods as verified by MALDI-MS. Comparison of the methods.

      Classification: 4d, 35a
      57 191
      Gyogyszereszet 29, 421-425 (1985) (Hungarian)
      E. BARTOS, P. MAJLAT

      (Comparative evaluation of analytical methods for the determination of preservatives. The determination of methyl-p-hydroxy-benzoate in the preparates of the pharmacopoeia by quantitative thin-layer chromatography and by gas-chromatography.) A simple, relatively rapid and repeatable thin-layer densitometric (and gas-chromatographic) method has been developed for quantitative determination of methyl-p-hydroxy-benzoate content of syrups, ointments and mucilages, corresponding to the requirements of the pharmacopoeia. Sample preparation with Extrelut columns. TLC on silica with pentane - ether 7:3. Detection by UV 254 nm. Detection limit 100 ng, densitometry by absorbance at 258 nm.

      Classification: 35b