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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56th IPC 2004, Abstract No. GP-46. Stability indicating HPTLC determination of cefuroxime axetil in bulk drug and in formulations on silica gel with chloroform - methanol 23:2. Quantitative determination by scanning at 278 nm. The sample was subjected to acidic, and alkali hydrolysis, oxidation and photo degradation. The degraded products were well separated. The method was validated for accuracy, precision, linearity, specificity, ruggedness, and recovery (98 - 100 %).
IPC 56th 2004, Abstract No. GP-15. Stability indicating HPTLC determination of ondansetron in solid oral dosage forms on silica gel with chloroform - methanol 4:1. Quantitative determination by scanning at 310 nm. The Rf value was 0.62 - 0.64, linearity was 40 - 120 ng. The average recovery was 100.01 %. The method was found suitable for routine analysis of formulations containing ondansetron.
Talanta 60 (5), 945-953 (2003). TLC of linezolid from its alkaline degradation product on silica gel with isobutanol - ammonia 9:1. Quantitative determination by densitometric measurement at 244 nm. The proposed method and two other methods (based on spectrophotometry) were successfully applied to the determination of the drug in bulk powder, in laboratory prepared mixtures with its degradation product and in commercial tablets.
Acta Chrom. 13, 102-108 (2003). Five commercial preparative layer chromatography plates precoated with silica gel of 1 mm thickness were compared on the basis of theoretical plate number and resolution by developing a test dye mixture (1.0 - 5.0 µg per zone) with ethyl acetate – methanol – water 4:1:1. Best results were obtained with the Mallinckrodt–Baker layer with 4.5 - 5.5 µm spherical particles. With one exception the efficiency and resolution of the other layers correlated with their particle size.
Indian J. Pharm. Sci. 68 (6), 790-793 (2007). HPTLC of carvedilol in bulk drug and pharmaceutical formulations, on silica gel with ethyl acetate - toluene - methanol 2:8:7. Quantitative absorbance measurement at 242 nm. The hRf value of carvedilol was 65. The method was found to be linear over the concentration range of 50-300 ng/spot with recovery of 98.3-101.1%.The method was validated for accuracy and precision. Comparison with an HPLC method showed the HPTLC method to be advantageous regarding sample throughput.
J. Planar Chromatogr. 20, 231-233 (2007). TLC of cadaverine and ornithine on calcium sulfate (and silica gel) with methanol. Detection by spraying with 0.2 % ethanolic solution of ninhydrin and then heating the plates at 110 °C for 15 min. Quantitation by scraping the spot from the plate and measuring the absorbance at 550 nm. The lower limit of detection was found to be 0.75 µg/zone of ornithine.
Part II. Connection with RP18 and silica plates. J. Chromatogr. Sci. 46 (4), 291-297 (2008). Optimization of the one-dimensional TLC of alkaloid standards on cyano phase, RP-18W, and silica gel with various eluents containing silanol blockers (besides diluent and modifier), such as diethyl amine or ammonia. Separation of alkaloid mixtures with the most selective system (e.g. methanol - water 4:1 in the first direction and methanol - acetone - diisopropylether - diethylamine 15:15:69:1 in the second direction) with an adsorbent gradient method. Alkaloids or plant extracts of Chelidonium majus, Fumaria officinalis, or Glaucium flavum were chromatographed in the first system, the plates were connected with the plate pre-coated with various adsorbents, and partly separated fractions were transferred to the second layer and developed in a second system. Cyano - silica - RP-18W and cyano - silica - silica were used as the connected layers. The alkaloids were identified based on the Rf values of standards, and by comparison of UV spectra obtained by densitometry with a diode array detector.
60th Indian Pharmaceutical Congress PA-177, (2008). HPTLC of sibutramine hydrochloride on silica gel with benzene - methanol 9:1. Quantitative determination by absorbance measurement at 223 nm. The method was linear in the range of 2-22 µg/mL (UV-Visible) and 100-700 ng/spot (HPTLC). The recovery was 99.5-101.6 % for both methods. The proposed methods could be used for routine analysis of the drug in capsule dosage-form