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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J. Liq. Chrom. & Rel. Technol. 22, 51-75 (1999). Examination of the retention behavior of 13 phenols and 19 aromatic amines on modified TLC plates using normal-phase eluent systems (polar modifier (2-propanol, ethyl methyl ketone, dioxane, tetrahydrofuran, diisopropyl ether) in n-heptane) and comparison of the results with those obtained on bare silica gel. - Visualization under UV 254 nm.
J. Planar Chromatogr. 13, 384-387 (2000). TLC of enantiomers (1-acenaphthol, phenoxymethyl oxirane, 4-chlorophenoxymethyl oxirane, 2-methylphenoxymethyl oxirane, trityloxymethyl oxirane) on microcrystalline cellulose triacetate (MCTA) with 2-propanol - water resp. ethanol - water 4:1 or of 7 glycidyl ethers with mobile phases containing derivatized and underivatized cyclodextrins on chiral stationary phases. Detection under UV 254 and 366 nm. Quantitation by densitometry in reflectance mode at 254 nm.
J. Liq. Chrom. Rel. Technol. 27, 1981-1992 (2004). Study of the interaction between cholesterol and non-ionic surfactants by reversed-phase TLC using cholesterol-impregnated TLC plates and methanol - water mixtures. TLC on aluminum oxide impregnated by overnight pre-development in a solution of cholesterol dissolved in chloroform - acetone 1:1. 20 surfactants were tested (Arcopal, Sapogenat, Tween, Genapol, Myrj, and Brij). The intercept obtained from linear regression anal. (RM0), being characteristic for the strength of interaction, and the slope (b), being related to the surface area of surfactants in contact with cholesterol, were detected. Stepwise regression anal. (SRA) was performed to find relation between the structural parameters of surfactants and strength of interaction. Stacking interaction exists between cholesterol and the aromatic ring of the surfactants. The number of ethylene oxide units and length of the carbon chain in the surfactant molecules have significant effect on the strength of the interaction between the compounds studied.
J. Planar Chromatogr. 18, 432-436 (2005). TLC of nine benzimidazole and benztriazole derivatives on silica gel impregnated with paraffin oil with methanol - water mixtures. After development the plates were dried and examined under UV light at 254 nm. A quantitative structure-retention relationship (QSRR) correlation study was performed.
Anal. Chim. Acta 593 (2), 224-237 (2007). Presentation of a novel atomic-contribution system for predicting RM values by TLC on silica gel with 13 screening systems where the large experimental datasets (198-761 RM values) are available. RM values could be predicted with less than 0.5 % error in the majority of solutes (besides several outliers), which corresponds to an hRf value difference of 28 in the worst case. Validation of the system by dividing the data into training and validation datasets, proving its accuracy. The main reason for outliers were large conjugated heterocycles, quarternary ammonium cations, large amount of polar atoms or very simple but unique molecules. The method invloves easy manual calculation and no need for a software. It was applied to predict retention of new compounds in existing chromatographic screening systems.
determination of log P of (E)-3-benzylidene-2,3-dihydro-1-benzopyran-4-ones by RP-TLC. Effect on log P of incorporation of oxygen atom into carbocyclic chalcone analogues. J. Planar Chromatogr. 26, 284-288 (2013). Log P-TLC of (E)-3-benzylidene-2,3-dihydro-1-benzopyran-4-ones on silica gel with methanol - water 3:2. Detection under UV light at 254 nm. The effect of positions (ortho, meta, and para) of the aromatic substituents in the compounds was evaluated.
International Journal of Molecular Sciences 3(7), 755-763 (2002). The introduction reviews in details the history of the Rm value, which means log(1/Rf – 1), and of its use to calculate the partition coefficient. For 10 aminoalkanethiosulfuric acids, 8 mercaptoalkanamines and 3 aminoalkyl disulfides, Rf and Rm values were determined by reverse phase TLC on silica gel (previously dessicated and impregnated with octanol – chloroform 1:19), with binary mixtures of methanol and 0.2 M ammonium acetate buffer pH 6.0 in different proportions. Detection by exposure to iodine vapor. Rm values were extrapolated to 100 % water, which was compared to the log P values obtained with the shake-flask method and with theoretical calculations.
J. Sep. Sci. 40, 2089-2096 (2017). HPTLC of thiepino[3,2-c:6,7-c′]dipyridine and 16 benzothiepino[3,2-c]pyridine derivatives on RP-18W with binary mixtures of methanol – water, acetone – water, and dioxane – water. The content of organic modifiers was increased as follows: methanol, 82–98 % (increment 4 %); acetone, 65–90 % (increment 5 %); and dioxane, 65–85 % (increment 5 %). Detection at UV 254 nm. Computational logP values and water solubility were calculated from the molecular structures. The best lipophilicity estimates were selected among computational and chromatographic experiments carried out using acetone – water mixtures.