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. Chromatogr. Relat. Technol. 41, 15-16 (2019). HPTLC of thymine (1), uracil (2), adenine (3), cytosine (4), guanine (5) and guanosine (6) in Ganoderma lucidum and Cordyceps sinensis on silica gel with dichloromethane - methanol - formic acid 160:45:16. Quantitative determination by absorbance measurement at 254 nm. Identification of nucleobases in the samples was reconfirmed by hyphenated HPTLC-MS. The hRF values for (1) to (6) were 83, 73, 46, 32, 23 and 10, respectively. The intermediate precision was below 5 % (n=3).
J. Chromatogr. A 1209 (1-2), 230-237 (2008). TLC of purines (adenosine and its major metabolites, inosine, and hypoxanthine) in rat brain tissue preparations, on silica gel with a two-step gradient mobile phase consisting of (1) n-butanol – water – acetonitrile - 10% ammonia - acetic acid 10:4:8:2:1 and (2) n-butanol – chloroform – acetonitrile - 10 % ammonia - acetic acid 10:4:8:2:1. Quantitative determination by absorbance measurement at 258 nm (via peak area). Application of the method to estimate the endogenous purines in discrete regions of rat brain. Development of a novel protocol for tissue preparation using 0.1 M HCl and 0.15 M NaOH solutions in 60 % methanol, which provided well-resolved peaks and high recoveries.
Budapest Chromatography Symposium June 13, 1985. TLC on starch and cellulose with four solvent systems. a) ethyl acetate - methanol - NH3 5:3:5, b) tert-butanol - MEK - water - NH3 4:3:2:1, c) butanol - acetic acid - water 50:25:25, d) ethyl acetate - acetone - methanol - NH3 2:3:3:2. Identification of aminophylline, azathiopurine, mercaptopurine, thioguanine, xantinolnicotinate and their metabolites: 1-methylxantine, 1, 3-dimethylxantine, 1-methyl uric acid, 1, 3-dimethyl uric acid, thyoxantine, methylthyoguanine.
RM and log P values. J. Chromatogr. 498, 179-190 (1990). Measurement of the RM values of a series of xanthine and adenosine derivatives on silicone-impregnated silica and C-18 silica with aqueous glycine buffers (pH 9.0) or sodium acetate veronal buffer (pH 7.0), alone or mixed with various amounts of acetone. Correlation of the two series of data obtained. Comparison of experimental log p values with calculated ones. The TLC data proved to be reliable for describing the lipophilic properties of the test compounds.
Chinese Anal. Chem. (Fenxi Huaxue) 23, 389-390 (1995). TLC of dinucleoside phosphorothioates on silica with 1) dichloromethane - methanol 25:1, 2) ethyl acetate - petrol ether 2:1, 3) ethyl acetate - petrol ether 3:1. Detection under UV 254 nm. Also HPLC. Identification by NMR.
J. Planar Chromatogr. 13, 452-456 (2000). HPTLC of caffeine on silica gel, prewashed with methanol, with dichloromethane - methanol 9:1. Quantitative densitometry at 270 nm. A video documentation system was used for imaging and archiving. MS after elution of the spots with methanol. - Also validation of the analytical procedure and evaluation of the limit of detection, limit of quantitation, precision, recovery, and linearity.
Correlation between different methods. J. Liq. Chromatogr. Relat. Technol. 31, 1014-1032 (2008). TLC of cytidine, lamivudine (2’,3’-dideoxy-3’-thiacytidine) and seven new 5’-carbonates of lamivudine on RP-18 with acetone - buffer pH 7.4 and methanol - buffer 7.4 mixtures with modifier contents between 40 and 80 % in 10 % increments. Detection under UV light. RP-TLC is a reliable and accurate technique to describe the lipophilic character of this nucleoside family of compounds.
Biochemistry 23, 2533-2539 (1984). TLC of uracil and its metabolites on cellulose with a) tert. butanol - MEK - water NH3 4:3:2:1, b) the upper phase of ethyl acetate - water - formic acid 60:35:5. Detection by UV for uracil, or by spraying with ninhydrin, NaOH, followed by p-(dimethylamino) benzaldehyde for the others.