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
- Browse and search by CBS classification: Select one of the 38 CBS classification categories where you want to search by a keyword
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Registered users can create a tailor made PDF of selected articles throughout CCBS search – simply use the cart icon on the right hand of each abstract to create your individual selection of abstracts. You can export your saved items to PDF by clicking the download icon.
J. Planar Chromatogr. 3, 521-526 (1990). HPTLC of estrone, equilin, equilenin and their 17a-diols on silica with cyclohexane - chloroform - methanol - triethylamine 16:18:2:3 and, after drying, chloroform - dioxan - triethylamine 40:3:2 (same direction). Mestranol was used as internal standard and densitometric measurement was made in the reflectance mode at 282 nm. Also study of the relationship between structure and retention.
Anal. Letters 26, 1787-1797 (1993). Reverse-phase HPTLC of three amino acid hydroxamates (arginine hydroxamate, threonine hydroxamate, histidine hydroxamate) on RP-18 silica. Study of the effect of different organic solvents as modifiers, both three solvents and four solvent systems, by using mixture design and a chromatographic response function.
Proc. 9th Internat. Symp. Instr. Chromatogr., Interlaken, April 9.-11., 311-312 (1997). Presentation and discussion of equations permitting the determination of the relationships between RM values of the substances and the composition of multicomponent mobile phases on the basis of measured chromatographic and absorption parameters and experimentally determined partition coefficients of the substance between the mobile phase components. Densitometry.
J. Planar Chromatogr. 13, 414-419 (2000). OPLC of 13 benzodiazepines (alprazolam, brotizolam, carbamazepin, temazepam, chlordiazepoxide, cinolazepam, clobazam, clonazepam, diazepam, nitrazepam, midazolam, medazepam, prazepam) on HPTLC silica gel with 8 mobile phases (benzene - chloroform - nitromethane 492:313:195; chloroform - dichloromethane - methyl ethyl ketone 809:115:76; acetonitrile - chloroform - toluene 136:651:213; chloroform - ethyl acetate 825:175; acetone - chloroform-methanol 28:876:96; chloroform - dioxane - toluene 784:154:62; acetonitrile - chloroform - tetrahydrofuran 268:840:132; acetic acid - chloroform - n-butanol 95:862:43). Detection under UV; densitometry at 240 nm. According to the results Snyder's endogeneous solvent strength (Si), proton donator (Xe), proton acceptor(Xd), and dipole(Xn) parameters are not satisfactory for complete description of a solvent mixture used as mobile phase.
J. Planar Chromatogr. 28, 234-240 (2015). HPTLC of (1) omeprazole, (2) pantoprazole, (3) rabeprazole and (4) diclofenac from tablets on silica gel previously washed with methanol and activated at 105 °C for 20 min, with toluene - n-butanol - 25 % ammonia 30:70:2. Quantitative determination by absorbance measurement at 290 nm. The hRF values were 67 for (1), 38 for (2), 57 for (3) and 27 for (4). Linearity was between 50 and 500 ng/zone for (1), (2) and (3), and between 150 and 1500 ng/zone for (4). The interday and intraday precisions were below 2 %. The LOD and LOD respectively for (1) were 7 ng/zone and 24 ng/zone, for (2) 9 ng/zone and 30 ng/zone, for (3) 13 ng/zone and 43 ng/zone, and for (4) 25 ng/zone and 82 ng/zone. Recovery was 99.6 % for (1), 100.1 % for (2), 100.4 % for (3) and 100.1 % for (4).
J. Liquid Chromatogr. 14, 3213-3239 (1991). Proposal of a new combination of four organic solvents for the optimization of TLC separations of basic drugs and alkaloids using response surface modelling and mixture designs. Adjustment of solvent strength and selectivity using a four component mixture space of tetrahedron. Discussion of the selection of the four solvents defining the factor space, the selection of the design space and of the experimental design, the optimization criterion, and the POEM software used for modelling the response surface and locating the optimal solvent composition.
J. Planar Chromatogr. 6, 296-299 (1993). Integration of four computer-assisted methods (the monofactor optimization system (MOS); the multicomponent solvent optimization system (MSOS); the difactor optimization system (DOS); and the stepwise gradient optimization (SGOS)) for optimizing HPTLC separation in order to produce the optimization system of TLC (OS T), resulting in a method development strategy which obtains simple solutions for simple separation problems and reserves the more complex solutions for difficult separations.
Proc. 9th Internat. Symp. Instr. Chromatogr., Interlaken, April 9.-11., 337-339 (1997). Prediction of retention data using multiple development and circular techniques from a single development.