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
- Keyword register: select an initial character and browse associated keywords
- Search by CBS edition: Select a CBS edition and find all related publications
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.
(Klamath weed (hypericum perforatum L.) - testing for falsification). Dtsch. Apoth. Ztg. 126, 2569-2573 (1986). TLC separation of flavonoid glycosides (i.a. hyperoside, quercitrin, quercitin, hypericin, emodin, hyperforin) on silica with ethyl acetate - formic acid - water 30:2:3., toluene - ethyl formiate - formic acid 50:20:5, heptane -isopropanol - formic acid 90:15:0.5 and hexane - ether 8:2. Detection by UV 254 nm, or spraying with 1 % methanolic "Naturstoffreagenz Roth" and subsequently with 5 % methanolic PEG 4000 solution, examination under UV 366 nm; spraying with 0.5 % aqueous fast blue salt B solution.
H. TRAITLER, A. STUDER, R.E. KAISER (eds): Instrumental HPTLC, Institute for Chromatography, Bad Dürkheim, FRG (1987), 61-69. TLC of chemically related compounds (e.g. isomers) on silica with 1) dichloromethane (presaturation with NH3), 2) chloroform (presaturation with NH3), and 3) ethyl acetate. Detection under UV at 254 nm and spraying with o-tolidine reagent after chlorination. Quantification by densitometry.
Chinese J. Chromatogr. 7, 181-183 (1989). TLC of 11 amino acids on microcrystalline cellulose with butanol - acetic acid - water 4:1:1. Detection by spraying with 0.5% ninhydrin in acetone. Quantification by densitometry. Comparison with other methods. The results were in good agreement with those obtained with amino acid auto analyzer.
J. Planar Chromatogr. 3, 407-409 (1990). HPTLC of cyproterone acetate and ethynyl estradiol on silica with cyclohexane - ethyl acetate 6:4 as mobile phase and 17ß-estradiol as internal standard. quantification by densitometry (absorbance at 284 nm). Detection limit for cyproterone acetate was 5 ng, for ethynyl estradiol 30 ng. The relationship between the spot concentration and the cyproterone acetate 17ß-estradiol area ration was linear over a range of 5 to 120 ng; for ethynyl estradiol the linear range was 120 to 1200 ng. The proposed assay is suitable for routine drug control.
J. Planar Chromatogr. 4, 483-484 (1991). TLC of 5-ASA and potential impurities (4-aminophenol, 2,4-diaminophenol, 2,5-dihydroxybenoic acid, salicylic acid, 3-aminosalicylic acid) on cellulose with methanol - dioxane - THF - NH3 55:25:15:5. Detection by spraying with ferricyanide - ferric chloride reagent.
II. Ruggedness Testing. J. Planar Chromatogr. 6, 259-268 (1993). Discussion of different approaches to test the ruggedness of TLC methods, including Tests of the effects both of variations in the different environmental conditions (laboratories, analysts, and instruments) and of differences in experimental procedures (sample preparation, sample application, chromatographic separation, and spot visualization and detection).
J. Planar Chromatogr. 7, 18-21 (1994). HPTLC of erythrosine on silica with ethyl acetate - methanol - NH3 25% 5:2:1. Densitometry by absorbance at 530 nm.
Biochemical Systematics and Ecology 22, 353-365 (1994). TLC of ethanol extracts on silica with ethyl acetate - heptane 1:1, dichloromethane - ethanol 9:1, butanol - acetic acid - water 6:3:1. Visualization by spraying with 5% vanillin-sulfuric acid reagent followed by heating.