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:
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Abstract No. C-453, 61st IPC (2009). Fingerprint analysis of budmunchiamines, the main constituents in Albizia amara. Dried powdered leaves were extracted with petroleum ether (60-80 °C), chloroform, ethyl acetate and 90 % methanol by maceration for 48 h. TLC on silica gel with chloroform - methanol 19:1. Zones 2, 4 and 8 corresponded to the marcocylic alkaloids budmunchiamine A, B, and C, which was confirmed by FTIR, NMR and MS.
Phytochem. Anal. 22, 36-41 (2011). TLC of kutkoside (1) and picroside-I (2) in the kutki extract (Picrorhiza kurroa) on silica gel with ethyl acetate - methanol - glacial acetic acid - formic acid 25:5:1:1. Quantitative determination by absorbance measurement at 265 nm.The hRf of (1) was 42 and of (2) 61. The precision was 0.77 % and 1.01 % for (1) and (2), respectively. Linearity was between 80-480 ng/zone for both substances. Detection and quantification limits were 24 and 79 ng/zone for both. The intra-day and inter-day precisions were 0.4 % and 0.3 % (n=3) respectively. The recovery for (1) was 96.5 % and for (2) 96.0 %, respectively. The results were comparable with those obtained by HPLC.
Acta Chromatographica 22 (3), 481-489 (2010). HPTLC on silica gel with toluene – ethyl acetate – methanol – formic acid 8:10:5:2. The hRf values were 22, 19, and 81 for sennosides A and B and kaempferol, respectively. Quantification by densitometry at 270 nm. The recovery of sennosides A and B and kaempferol from Cassia fistula extract were 98.0, 98.7, and 99.1 %, respectively. The linearity was in the range of 100–400 ng/band. Instrument precision was in the range of 1.03-1.33 % and method precision in the range of 1.3-1.8 %.
International Journal of Pharma and Bio Sciences 1(1), 1-3 (2010). Shade dried aerial parts of the plant were extracted with acetone (A) and methanol (B) and the solvent was removed to get the crude extract. Extract A was further fractioned over silica gel (60-120) by eluting with n-hexane (C) and n-hexane – acetone 9:1( D) . TLC of all fractions on silica gel with n-hexane – ethyl acetate. Quantitative determination by absorbance measurement at 258 nm. The linearity was in the range of 1-5 µg/band. The amount of santonin found in different fractions of the acetone extract was 31.3 mg/g (A), 40.7 mg/g (B), 1.9 mg/g (C), and 20.9 mg/g (D).
J. Ethnopharmacol. 137, 1337-1344 (2011). HPTLC of phyllanthin (A) and gallic acid (B) in the whole plant of Phyllanthus simplex on silica gel with hexane - ethyl acetate 5:1 for (A) and ethyl acetate - formic acid 44:3 for (B). Detection by spraying with anisaldehyde - sulfuric acid reagent. Quantitative determination by absorbance measurement at 260 and 520 nm. The hRf values of (A) and (B) were 19 and 82, respectively. The amount found in samples was 14.5 % for (A) and 0.7 % for (B).
J. Planar Chromatogr. 24, 352-356 (2011). HPTLC of extracts of dried powdered rhizoms of A. galanga and three phenylpropanoids (1-acetoxychavicol acetate (1), acetoxyeugenol acetate (2), and trans-p-coumaryl diacetate(3)) on silica gel with n-hexane - ethyl acetate 4:1 with chamber saturation for 1 h. After drying second development with the same mobile phase. Quantitative determination by densitometry at the wavelength of maximum absorption. Linearity was between 0.6-1.8 µg/band, 0.4-1.5 µg/band and 0.1-0.3 µg/band for (1), (2), and (3), respectively. The LOD and LOQ was 150 and 500 ng/band for (1), 100 and 334 ng/band for (2), and 23 and 77 ng/band for (3). The repeatability of application and repeatability of measurement (%RSD, n = 6) was 0.9 and 0.5 % for (1), 0.5 and 0.3 % for (2), and 1.8 and 0.9 % for (3). The intra-day and inter-day precision was below 5 % for all compounds. The hRf value was 53, 37, and 43 for (1), (2), and (3), respectively.
Acta Chromatographica 22 (4), 651-663 (2010). HPTLC of wedelolactone (WED) and asiaticoside (ASI) in Eclipta alba and Centella asiatica Linn., respectively, on silica gel with toluene - acetone - methanol - formic acid 60:40:40:1. The hRf value was 26 and 75 for ASI and WED, respectively. Detection by spraying with 10 % methanolic sulphuric acid. Quantitative evaluation by absorbance measurement at 317 nm for WED and at 530 nm after derivatization for ASI. The linearity was in the range of 50-250 ng/band for WED and 150-550 ng/band for ASI with r = 0.999 for WED and 0.9989 for ASI. The recovery of WED was 99.3 % and of ASI 99.5 %.
Planta Med. 77, 548 (2011). HPTLC of forskolin and extracts from rhizomes of Coleus forskohlii on silica gel with toluene - methanol 12:1. The hRf value of forskolin was 27. Anisaldehyde-sulfuric acid reagent was used for spraying followed by heating of the plate at 105 °C for 5 min. Quantitative determination by densitometric scanning in absorbance mode at 545 nm.