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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Acta Chromatographica 22 (3), 391-404 (2010). Examination of the effect of conditioning of the silica layer by mobile phase vapor, diethylamine vapor and its aqueous and methanolic solutions, and ammonia vapor on the retention of alkaloids eluted with multicomponent non-aqueous mobile phases. Investigation of the effect of conditioning time and vapor phase composition on system efficiency and peak symmetry, and as well the effect of vapor phase composition on separation selectivity.
Rapid Commun. Mass Spectrom. 25, 2201-2208 (2011). HPTLC of an equimolar mixture of malto-oligosaccharides, derivatized with p-aminobenzoic acid, on silica gel with acetonitrile – water – acetic acid 8:2:1. Quantitative determination by fluorescence measurement at 366 nm. The relative molar composition of the oligomers, determined by HPTLC, was used as a reference data for mass spectrometric analyses. For both electrospray ionization and matrix-assisted laser desorption/ionization methods, the instrumental parameters significantly influence the signal intensities and areas.
62nd Indian Pharmaceutical Congress Abstract No. F-233 (2010). TLC of metoprolol and ramipril on silica gel with methanol – toluene – ethyl acetate – ammonia 25:30:50:7. Quantitative determination by absorbance measurement at 209 nm. The hRf values of metoprolol and ramipril were 67 and 37, respectively. The reliability of the method was assessed by evaluation of linearity (2-12 µg/band for metoprolol and 0.2-1.2 µg/band for ramipril).
F-255 (2010). TLC of irbesartan on silica gel with ethyl acetate – toluene – glacial acetic acid 35:15:1. Quantitative determination by absorbance measurement at 240 nm. The method was linear in the range of 200-800 ng/band. The sample was subjected to different stress conditions (acid, alkali, oxidation, thermal & photolytic). The compound was well separated from the different degradation products and could be estimated without any interference from the degradation product. The proposed stability indicating assay method was found suitable for routine quality control.
62nd Indian Pharmaceutical Congress Abstract No. F-254 (2010). TLC of amlodipine besylate and telmisartan on silica gel with ethyl acetate – methanol – 25 % ammonia – glacial acetic acid 75:15:1:2. The hRf value was 34 and 60 for amlodipine besylate and telmisartan, respectively. Quantitative determination by absorbance measurement at 226 nm. The linearity was in the range of 500-6000 ng/band for amlodipine and 1000-8000 ng/band for telmisartan. The sample was subjected to various stress conditions and all the degradation products were well resolved from the pure drugs. The method can be used for stability studies.
Chinese J. Ethnomed. Ethnopharm. (1), 55-57 (2011). TLC of components of Baibanding tincture: 1) for Gardenia jasminoides, on silica gel with ethyl acetate – acetone – methanol – water 5:5:1:1, detection by spraying with 10 % sulfuric acid in ethanol and heating at 110 °C until the zones were visualized; 2) for Cuscuta chinensis, on polyamide phase with methanol – glacial acetic acid – water 4:1:5, detection by spraying with AlCl3 solution and evaluation under UV 366 nm; 3) for Malaytea scurfpea fruit on silica gel with n-hexane – ethyl acetate 4:1, detection by spraying with 10 % NaOH in methanol and evaluation under UV 366 nm. Identification by fingerprint comparison with the individual component drug of the preparation.
J. Chinese Modern Med. & Pharm. 18 (1), 40-42 (2011). TLC on silica gel with petroleum ether (60-90 ºC) – ethyl acetate 1:1. Detection under UV 254 nm. Identification by comparison of the fingerprint of the main component, Rehmanniae Radix.
J. Chromatogr. A 1218 (19), 2785-2792 (2011). Examination of the applicability of TLC for the analysis of biodiesel conversion. Biodiesel is a complex mixture which complicates the analytical separation and requires a large set of data for understanding reaction kinetics. A flame ionization detector (FID) and a modified TLC staining procedure were evaluated in comparison with the well-established but time-consuming and expensive GC and HPLC methods. The TLC staining method is suited for quantitative analysis due to no background. Demonstration by using several experimental samples produced by enzymatic conversion of rapeseed oil to biodiesel. It was found that the first reaction step (6 h) resulted in 85–95 % conversion and the second step (after removal of glycerol and water) increased the yield to 97–98 %. All components of the mixtures were separated and quantified. Relation of the biodiesel contents measured by TLC and GC gave the values of 1.03 ± 0.07 (TLC-staining) and 0.95 ± 0.04 (TLC–FID), which indicated the applicability of the TLC methods.