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.
Sz. Nyiredy, A. Kakuk (eds.): Planar Chromatography 2000, Lillafüred, Hungary, 24-26 June 2000, Res. Inst. for Med. Plants, p. 19-25. OPLC of ethinyl estradiole on silica gel with cyclohexane - ethyl acetate - chloroform 3:1:1. Detection by spraying with sulfuric acid and visual evaluation at 366 nm. The method is compared with the Official British and European Pharmacopoeia monographs. Only with the OPLC method it was possible to separate all impurities, i.e. 6-hydroxy derivatives (both isomers), the oxo-derivatives (6-oxo- and 16-oxo-), the 9(11)-dehydro and the 17-epi-derivatives from the estrone and estradiol. The HPLC method of the 3rd European Pharmacopoeia has to be changed slightly in order to analyze all impurities. The British Pharmacopoeia TLC method was not suitable because of its poor selectivity. Both OPLC and HPLC are suitable for purity testing. The OPLC method was preferred for process-validation because it shows a short analysis time and low eluent consumption (tenfold less than HPLC). The HPLC method was used for critical batches due to its better precision (3,5% RSD).
simultaneous quantification of eight bioactive secondary metabolites from Cicer
microphyllum by high-performance thin-layer chromatography
J. Sep. Sci. 38, 4021-4028 (2015). HPTLC of eight natural products viz. stigmasterol (1), oleanolic acid-3-acetate (2), oleanolic acid (3), biochanin A (4), genistein (5), pratensein (6), chrysoeriol (7), and luteolin (8) in Cicer microphyllum on silica gel with n-hexane - ethyl acetate - formic acid 90:65:8. Detection by dipping into a solution of cerric ammonium sulfate reagent, followed by heating at 105 °C for 5 min. Quantitative determination by absorbance measurement at 366 nm. The hRF values for compounds (1) to (8) were 98, 89, 78, 70, 63, 42, 33 and 4, respectively. Linearity was in the range of 100-800 ng/zone for (1) to (8). LOD and LOQ were 60 and 90 ng/zone for (1), (5) and (8), 50 and 90 ng/zone for (2), 90 and 110 ng/zone for (3), 70 and 100 ng/zone for (4) and (6) and 80 and 110 ng/zone for (7). The intermediate precision was below 1.5 % (n=3). Recovery was in the range of 98-100 %.
of caffeic acid, ferulic acid, ?-sitosterol, and lupeol in Convolvulus pluricaulis Choisy and its adulterants/substitutes
J. Planar Chromatogr. 31, 429-436 (2018). HPTLC of _x000D_caffeic acid (1), ferulic acid (2), β-sitosterol (3), and lupeol (4) on silica gel with toluene – ethyl acetate – formic acid 85:15:1. Quantitative determination by absorbance measurement at 366 nm for (1) and (2) and 580 nm for (3) and (4). The hRF values for (1) to (4) were 14, 29, 48 and 63, respectively. Linearity ranged between 100-600 ng/zone for (1) and (2) and 200-700 ng/zone for (3) and (4). LOD and LOQ were 49 and 149 ng/zone for (1), 93 and 282 ng/zone for (2), 194 and 589 ng/zone for (3) and 36 and 109 ng/zone for (4), respectively. The intermediate precision was <2 % (n=6). Average recovery was 99.6 % for (1), 99.9 % for (2), 99.2 % for (3) and 99.5 % for (4).
J. Agric. Food Chem. 34, 105-108 (1986). TLC analysis of steroids on silica with chloroform - acetone 95:5, preparative purification of ergosterol peroxide on a centrifugally accelerated radial thin-layer chromatograph with hexane - ethyl acetate 7:3, at a flow rate of 4 ml/min.
Phytochemistry 28, 2931-2935 (1989). TLC of 14C labeled substances: separation of cholesteryl or hexadecanyl esters from cholesterol or hexadecanol on silica with hexane - acetone 49:1 or hexane - chloroform 3:2. Localization of substances with Rhodamin 6G. Autoradiography.
(Hungarian). Magyar Kémiai Folyóirat 99, 271-274 (1993). TLC of 3ß-hydroxy-5a-cholest-8(14)-en-15-one on silica with hexane - ethyl acetate 9:1, dichloromethane - acetone 97:3, or benzene - methanol 98:2. Detection under UV 254 and 366 nm.
J. Chinese Trad. Patent Med. (Zhongchengyao) 20 (6), 43 (1998). TLC on silica gel with isooctane - n-butyl ether - acetic acid 8:5:5. Detection by spraying with 10% phosphomolybdic acid in ethanol and heating at 105°C for 5 min. Quantitation by comparison to standard.
CBS 90, 2-4 (2003). HPTLC-AMD on silica gel with a 11-step gradient with chloroform - ethanol - acetone followed by 3 isocratic steps with chloroform for separation of cholesterol, cholesterol sulfate and various ceramide classes. For separation of cholesterol, fatty acids, triacylglycerol, cholesteryl esters, and squalene a 2-step gradient with n-hexane - ethyl acetate followed by an isocratic step with n-hexane. Conditioning between single runs with 4 M acetic acid. Detection by dipping in copper sulfate reagent followed by heating at 150 °C for 20 min. Quantitative determination by absorbance measurement at 546 nm.