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.
J. Liq. Chromatogr. Relat. Technol. 29, 583-590 (2006). TLC of ajmalicine, catharanthine, and vindoline on silica gel with chamber saturation using 12 different mobile phases. Detection under UV 254 nm. For confirmation the spots were individually eluted und subjected to two dimensional TLC; quantitation by in situ densitometry at 280 nm.
Indian J. Pharm. Sci. 68 (6), 793-796 (2006). HPTLC of atorvastatin calcium and ezetimibe in combined dosage form on silica gel with chloroform - benzene - methanol - acetic acid 60:30:10:1. Detection under UV 250 nm.The method was validated in terms of linearity, accuracy, precision and specificity.The calibration curve was found to be linear between 0.8 and 4.0 µg/spot for atorvastatin calcium and 0.1 and 1.0 µg/spot for ezetimibe. The limit of detection and the limit of quantification for atorvastation calcium were found to be 170 ng/spot and 570 ng/spot, respectively, and for ezetimibe 20 ng/spot and 70 ng/spot, respectively.The recovery was in the range of 99.9 - 102.7 %.
J. Chromatogr. A 1043 (1-2), 243-251 (2007). Presentation of the coupling of planar chromatography with direct analysis in real time time-of-flight mass spectrometry (DART-TOF-MS) for the first time. By cutting the plate within a track led to substance zones positioned on the plate edge, the interested zones were directly introduced into the DART gas stream to obtain the mass signals instantaneously within seconds, giving the detectability in the very low ng/zone-range on the example of isopropylthioxanthone. The coupling was perfectly suited for identification and qualitative purposes, but for quantification of results the analytical response and the repeatability were strongly dependent from proper manual positioning of the HPTLC plate into the excited-state gas stream of the ion source. By using stable isotope-labeled standards the drawback can be overcome demonstrated with the example of caffeine, and the analytical response (r2 of 0.9892) and repeatability (RSD < ±5.4%, n = 6) were improved to a high extent. The spatial resolution by an in-house-built plate holder system was shown to be better than 3 mm; the decay of the signal was observed. Comparison of the efficacy of this new coupling to a plunger-based extraction device for HPTLC/electrospray ionization–MS. The detectability of latter showed to be down to the pg/zone-range, e.g. the limit of quantification for isopropylthioxanthone to be 100 pg/zone. The repeatability was comparable (RSD ± 6.7%), however, without the need of internal standard correction, and the analytical response slightly better (r2 of 0.9983). The spatial resolution was 2 mm or 4 mm depending on the plunger head used.
J. Planar Chromatogr. 20, 141-143 (2007). TLC of methyl, ethyl, propyl p-hydroxybenzoate, p-hydroxybenzoic acid, benzoic acid, sodium benzoate, butylated hydroxyanisol, and butylated hydroxytoluene on the inorganic ion exchanger stannic silicate in a twin-trough chamber with n-hexane - ethyl methyl ketone - acetic acid 80:20:3. Quantitation by scanning densitometry at 260 nm.
J. Planar Chromatogr. 20, 341-345 (2007). HPTLC of octachlorodipropyl ether on silica gel prewashed with chloroform - methanol 1:1 in an unsaturated twin-trough chamber with toluene - acetic acid - water 20:20:1. Detection by spraying with silver nitrate - 2 M ethanolic potassium hydroxide, followed by heating for 30 min at 120 °C, overspraying with 1 % silver nitrate in 30 % nitric acid, and exposure to UV light for approximately 15 min. Densitometric evaluation of absorbance at 399 nm.
CBS 97, 9-11 (2006). HPTLC of trigonelline in fenugreek (Trigonella foenum-graecum) on silica gel in a saturated twin-trough chamber with n-propanol - methanol - water 4:1:4 over 80 mm. Quantitative determination by absorbance measurement at 269 nm. The hRf value of trigonelline was 46 and selectivity regarding matrix was given. Linearity was between 100 and 1200 ng/zone. The inter- and intraday precision was below 1 %. The limit of detection and quantification was 2.3 and 7.6 ng/zone, respectively. Recovery (by standard addition) was 99 - 101 %.
and Dietary Supplements. Chromatographia 66 (9-10), 797-800 (2007). HPTLC of 20-hydroxyecdysone from Sida rhombifolia L. on silica gel plates with chloroform - methanol 4:1. Quantification by densitometry at 250 nm in absorbance mode. Linearity was between 200 and 1000 ng/zone. This method was successfully applied for quantitative evaluation of dietary supplements. In addition, for six different Sida species unique fingerprints were obtained on the HPTLC plate.