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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Abstract No. F-245, 61st IPC (2009). HPTLC of atorvastatin (AT) calcium, ramipril (RA) and aspirin (AS) on silica gel with benzene - ethyl acetate - toluene - methanol - acetic acid 40:45:10:5:1. Quantitative determination by absorbance measurement at 220 nm. The hRf values were 45, 28 and 72 for AT, RA and AS, respectively. The linearity ranges were 0.5-2.5 µg/band (r2=0.998) for AT, 0.5-2.5 µg/band (r2=0.9978) for RA and 0.75-3.75 µg/band (r2=0.9946) for AS with mean recoveries of 100.3, 99.1 and 98.9 for AT, RA and AS, respectively.
J. Planar Chromatogr. 22, 277-281 (2009). HPTLC of racecadotril (2-{2(acetylsulfanylmethyl)-3-phenylpropanoyl}amino acetic acid benzyl ester) and its degradation products in the bulk drug and in a pharmaceutical formulation on silica gel with n-hexane - ethyl acetate 7:3 in a twin trough chamber saturated for 30 min. Quantitative determination by absorbance measurement at 230 nm. The limit of detection and quantification was 50 and 100 ng/band, respectively.
Abstract No. F-262, 61st IPC (2009). HPTLC of L-dopa on silica gel with n-butanol - water - actic acid 4:1:1. The hRf was 37. Detection by spraying with 0.5 % ethanolic ninhydrin solution, followed by heating at 120 °C for 2 min. Quantitative determination by absorbance measurement at 520 nm. The method was linear in the range of 600-1400 ng/band.
Abstract No. F-264, 61st IPC (2009). HPTLC of pantoprazole and itopride hydrochloride on silica gel with n-butanol - chloroform - 25 % ammonia 7:2:1. The hRf value was 54 and 75 for pantoprazole and itopride hydrochloride, respectively. Quantitative determination by absorbance measurement at 291 nm. The linearity of the method was 80-240 ng/band for pantoprazole and 300-900 ng/band for itopride.
f.) Etting. J. Planar Chromatogr. 23, 104-107 (2010). TLC of (+)-catechin, ellagic acid, quercetin, and ferulic acid on silica gel with toluene - ethyl acetate - fomic acid 6:4:1 in a twin-trough chamber previously saturated for 30 min at 25 °C. Other mobile phase compositions were ethyl acetate - methanol - water 10:1:1, n-butanol - acetic acid - water 4:1:5 (upper layer), n-butanol - ethanol - water 20:5:11, n-butanol - acetic acid - water 6:2:1, toluene - ethyl acetate - formic acid 5:5:1 and 7:3:1, and toluene - ethyl acetate - methanol - formic acid 140:60:1:1. Quantitative determination by absorbance measurement at 320 nm. Detection by dipping in anisaldehyde reagent, followed by drying and heating at 110 °C for 5 min. Characteristic bands of (+)-catechin, ellagic acid, quercetin, and ferulic acid were observed at hRf 35, 41, 63 and 66, respectively. Precision (CV, n = 7) was 0.39, 0.44, 0.55 and 0.16 % and repeatability (CV, n = 7) 0.65, 0.95, 0.37 and 0.18 %, respectively. LOD was 54, 340, 48 and 78 ng/band, and LOQ 4.1, 6.5, 1.6 and 1.5 µg/band, respectively. Linear regression was 0.9993 (100-500 ng/band), 0.9883 (1000-5000 ng/band), 0.9989 (100-500 ng/band) and 0.9987 (100-500 ng/band), respectively.
J. Planar Chromatogr. 23, 18-22 (2010). TLC of amphotericin B on silica gel with chloroform - methanol - borate buffer (pH 8.3) 4:5:1 in a chamber pre-saturated for 20 min. Detection under UV 366 nm. The hRf of the main component was 46, and of the minor component 31. Quantitative determination by absorbance measurement at 385 nm. Direct bioautography with Candida albicans proved to be the most sensitive method, with a detection limit of 0.8 ng per spot. For densitometric evaluation of plates at 385 nm ten times more substance is required.
J. Planar Chromatogr. 23, 233-236 (2010). HPTLC of trans-citral and cis-citral in lemongrass oil on silica gel with toluene - ethyl acetate 17:3 in a twin-trough chamber saturated for 15 min (at 25 °C and 55 % RH). Detection by spraying with vanillin-sulfuric acid reagent. Quantitative determination by absorbance measurement at 595 nm. Intra-day and inter-day precision were evaluated by replicate (n = 6) analysis of samples (trans-citral at 450, 900, and 1800 ng/band, and cis-citral at 470, 940, and 1880 ng/band). The linear range was 225-3600 ng/band for trans-citral, and 470-3760 ng/band for cis-citral. The correlation coefficient r was 0.9933 for trans-citral and 0.9937 for cis-citral. Intra-day precision (n = 6) was < 3.56 and 5.66 % for trans- and cis-citral, respectively. Inter-day precision was assessed to be < 3.47 and 5.52 % for trans- and cis-citral by repeating the intra-day assay on three different days. Repeatability of sample application and peak-area measurement was 0.98 %, determined by performing six replicate analyses of the same band (1800 ng/band trans-citral and 1880 ng/band cis-citral). The RSD of recovery of trans and cis-citral was in the ranges 1.36-3.25 and 1.64-3.47, respectively.
Abstract No. C-161, 61st IPC (2009). An HPTLC method is reported for estimation of andrographolides bitter principles in Andrographis paniculata, popularly known as kalmegh. HPTLC of methanolic and water extracts on silica gel with chloroform - methanol 7:1 in a saturated twin trough chamber. Quantitative evaluation by absorbance measurement at 231 nm. The method was found to be linear in the range of 1-5 µg/band. Both extracts were found to contain andrographolides. Maximum yields of andrographolides were observed in extracts prepared by refluxing.