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. Ethnopharmacol. 198, 158-166 (2017). HPTLC of chlorogenic acid in the stems of Solanum xanthocarpum on silica gel with ethyl acetate – glacial acetic acid – formic acid – water 8:3:3:4. Quantitative determination by absorbance measurement at 254 nm. The hRF value for chlorogenic acid was 56.
method for determination of amygdalin
J. Liq. Chromatogr. Relat. Technol. 40, 297-303 (2017). HPTLC of amygdalin on RP-18 with acetonitrile – water 1:1. Quantitative determination by absorbance measurement at 210 nm. The hRF value for amygdalin was 60. Linearity was between 2.5 and 50 μg/zone. LOD and LOQ were 1 and 4 μg/zone, respectively. The intermediate precision was <2 % (n=3). Recovery rate ranged from 99.9 to 100.6 %.
J. Chromatogr. Sci. 54 (8), 1421-1427 (2016). Development of a simple, cost-effective and reliable method for quantification of naphthoquinones, found as natural red color pigments in roots of Arnebia benthamii (Wall. ex G.Don) I.M. Johnst., by HPTLC on silica gel with hexane – ethyl acetate – methanol 16:3:1. Determination of shikonin (hRf 37) and β,β-dimethylacryl shikonin (hRf 58) in the methanol extract by densitometry at 520 nm. The linearity was 0.1-8 µg/zone. The average recovery was >97 % for both and the intraday and interday precision for the quantification of naphthoquinones was good (%RSD <2.0 %). The LOD were 13 and 15 ng/zone for shikonin and β,β-dimethylacryl shikon and the LOQ were 39 and 44 ng/zone, respectively.
J. China Pharm. 25 (2), 72-74 (2016). Baibai Keli granule is a herbal TCM for treatment of menorrhagia caused by Qi deficiency and blood-heat. For quality control, TLC of its extracts on silica gel (1) for Codonopsis pilosula (Franch.) Nannf., with n-butanol – formic acid 1:1, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 °C until the zones are visualized in daylight; (2) for Poria Cocos (Schw.) Wolf dry sclerotium, with petroleum ether (30-60 °C) – acetone 4:1, detection under UV 366 nm; (3) for Atractylodes macrocephala, with petroleum ether (60-90 ºC) – ethyl acetate 20:1, detection by spraying with 5 % vanillin in sulfuric acid – ethanol 4:1 and heating at 105 °C until the zones are visualized in daylight; (4) for Astragalus membranaceus (Fisch.) Bunge., with the lower phase of chloroform – ethyl acetate – methanol – water 3:3:2:1 under 10 ºC overnight, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 ºC until the zones are visualized, evaluation (A) in daylight and (B) at UV 366 nm. Quantification of glycyrrhizic acid by HPLC.
Planta Med 83(05), 412-419 (2017). For the purification of verbascoside, the ethanol-water fractionation through size exclusion chromatography (Sephadex LH-20) of an 80 % ethanolic extract of Lippia citriodora leaves was monitored by TLC on silica gel with chloroform – methanol 7:3, followed by detection with vanillin sulfuric acid reagent.
J. Planar Chromatogr. 31, 57-60 (2018). HPTLC of azathioprine, caffeine, theobromine, theophylline and acyclovir on RP-18 W with acetonitrile - TRIS–HCl buffer pH 8.0 (1 mM) 1:4. It was neither possible to separate azathioprine from caffeine, nor theobromine from theophylline. Under the same conditions, pressurized planar electrochromatography with a polarization voltage of 2.5 kV showed better results, as all five purine derivatives could be separated. Detection under UV 280 nm._x000D_
J. Planar Chromatogr. 31, 250-256 (2018). HPTLC of fifteen 17β-carboxamide glucocorticoid derivatives and prednisolone on RP-18 with acetonitrile – water (1:1, 3:2, 7:3, and 4:1), acetone – water (1:1, 3:2, 7:3, and 4:1, and 9:1), ethanol 96 % – water (1:1, 3:2, 7:3, and 4:1), methanol – water (3:2, 7:3, 4:1, and 9:1) and tetrahydrofuran – water (1:1, 3:2, 7:3, and 4:1). The system consisting of water and ethanol 96 % was selected as the most suitable for the prediction of octanol – water partition coefficients (log Po/w).
quantifications of some physiologically active secondary metabolites in Averrhoa carambola L
fruits. J. Planar Chromatogr. 31, 207-212 (2018). HPTLC of gallic acid (1), protocatechuic acid (2) and quercetin (3) in the fruits of Averrhoa carambola on silica gel with toluene – ethyl acetate – formic acid 5:4:1. Quantitative determination by absorbance measurement at 310 nm. The hRf values for (1) to (3) were 29, 37 and 42, respectiely. Linearity was in the range of 100-600 ng/zone for (1) to (3). The intermediate precision was below 2 % (n=3). The LOD and LOQ were 30 and 90 ng/zone for (1), 33 and 100 ng/zone for (2) and 28 and 85 ng/zone for (3), respectively. Recovery ranged between 97.6 and 99.2 % for (1) to (3).