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. Planar Chromatogr. 33, 281-291 (2020). HPTLC of piperine in the fruit of Piper nigrum on silica gel with toluene - ethyl acetate - formic acid - methanol 15:15:4:1. Detection by dipping into anisaldehyde sulfuric acid reagent, followed by heating at 105 ºC for 5 min. Quantitative determination by absorbance measurement at 366 nm. The hRF value for piperine was 71. Linearity was between 100 and 500 ng. Intermediate precision was below 4 % (n=5). The LOD and LOQ were 72 and 218 ng, respectively. Average recovery was 98.8 %.
J. Planar Chromatogr. 33, 245-253 (2020). HPTLC of twenty-one chalcones on RP-18 with three binary combinations (acetonitrile - water, ethanol - water and acetone - water) in the following compositions: 1:1, 3:2, 7:3 and 4:1. Detection at UV 254 nm. Acetonitrile - water was found to be the most suitable system for lipophilicity prediction of tested compounds using calculated logP values. Quantitative structure-retention relationship (QSRR) analysis was performed to identify the most important structural and physico-chemical properties that influence retention behavior of tested compounds.
J. Planar Chromatogr. 33, 219-229 (2020). HPTLC of carbamazepine (1) and its degradation product iminostilbene (2) on silica gel with petroleum ether - acetone 7:3. Quantitative determination by absorbance measurement at 230 nm. The hRF values for (1) and (2) were 12 and 63, respectively. Linearity was between 0.1 and 1.4 µg/zone for (1) and 0.1 and 1.2 µg/zone for (2). Intermediate precision was below 2 % (n=3). The LOD and LOQ were 0.03 and 0.09 µg/zone for (1) and 0.03 and 0.09 µg/zone for (2), respectively. Average recovery was 99.7 % for (1) and 99.7 % for (2).
J. Planar Chromatogr. 33, 271-279 (2020). Two-dimensional HPTLC of cholic, ursodeoxycholic, chenodeoxycholic, deoxycholic, and lithocholic bile acids on silica gel with 0.0001 M cetylpyridinium chloride at pH 9 with the addition of aliphatic alcohol modifiers 4 % 1-butanol (direction II) and 0.6 % 1-pentanol (direction II). Detection by drying the plate for 2-3 min in the oven at 120 ºC, followed by spraying with 8 % sulfuric acid in ethanol. Qualitative determination under UV light at 365 nm.
J. Planar Chromatogr. 33, 313-319 (2020). HPTLC of berberine (1) and rutin (2) on silica gel with n-hexane - ethyl acetate - glacial acetic acid - methanol 100:11:11:25. Quantitative determination by absorbance measurement at 241 nm. Antioxidant activity was determined by dipping into a 0.05 % DPPH solution followed by qualitative analysis at 366 nm. The hRF values for (1) and (2) were 67 and 47, respectively. Linearity was between 0.2 and 1.4 µg/zone for (1) and 2 and 14 µg/zone for (2). Intermediate precision was below 1 % (n=6). The LOD and LOQ were 0.2 and 2 µg for both (1) and (2), respectively. Average recovery was 94.9 % for (1) and 96.3 % for (2).
J. Planar Chromatogr. 33, 231-244 (2020). HPTLC of apremilast on silica gel with toluene - methanol - ethyl acetate 7:2:1. Quantitative determination by absorbance measurement at 241 nm. The hRF value for apremilast was 63. Linearity was between 200 and 1000 ng/zone. Inter-day and intra-day precision were below 1 % (n=3). The LOD and LOQ were 4 and 13 ng, respectively. Recovery rate was between 99.7 and 100.0 %. Apremilast was subjected to acidic, alkaline, oxidative, dry heat, neutral, and photolytic degradation conditions. The method was implemented using a quality risk management and quality by design approach for regulatory requirements.
Phcog. Mag. 15, 440-448 (2019). HPTLC fingerprint of Psidium guajava on silica gel with toluene - ethyl acetate - formic acid 6:3:1. Qualitative determination under UV light at 254 and 450 nm. The hRF values of common metabolites were 3, 18 and 42 in both aqueous and n‑butanol fractions.
Pharmacogn. Mag. 15, 256-260 (2019). HPTLC of piperine (1), asiaticoside (2), and withanolide A (3) in a polyherbal formulation of Piper longum, Centella asiatica, and Withania somnifera on silica gel with toluene - ethyl acetate 9:1 for (1), ethyl acetate - methanol - water 20:5:2 for (2) and toluene - ethyl acetate - formic acid 5:5:1 for (3). Detection by spraying with 5 % aqueous sulfuric acid, followed by heating at 110 °C. The developed plates were scanned at 254 nm, 366 nm and visible light. The hRF values for (1) to (3) were 24, 71 and 77, respectively.