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
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J. Chromatogr. 624, 425-437 (1992). Review with 89 references on the determination procedures, emphasizing on the so-called multimethods using TLC/immunological method, GC/MS and LC/MS. For most of these techniques, a strong trend towards lowering the level of detectability (down to the sub-ppb range) and improving accuracy and reproducibility can be established. TLC is considered to have several distinct advantages over other chromatographic methods: the possibility of analysing many samples simultaneously rather than serially, speed, etc.
Tetrahedron 63, 5460-5469 (2007). Preparative TLC of branched oligoamides derived from methyl salicilate on silica gel with dichloromethane – acetone 3:1. Detection under UV 254 nm. Dimerization increases the hRf value from 12 to 46.
Research Journal of Pharmaceutical, Biological and Chemical Sciences 1(4), 354-359 (2010). TLC on silica gel with toluene - methanol - triethylamine 12:6:1 with chamber saturation for 15 min. Densitometric evaluation at 290 nm. The hRf value was 23 and 67 for famotidine and domperidone, respectively. The method was found to be linear in the range of 100-500 ng/band. The recovery was 98.8 %.
J. AOAC Int. 93, 787-791 (2010). HPTLC of omeprazole on silica gel with chloroform - methanol 9:1 in a twin-trough chamber after saturation for 20 min. Quantitative determination by absorbance measurement at 302 nm. The hRf value of omeprazole was 39. Linearity was between 50 and 3000 ng/band. The intra-day and inter-day precision was 0.4-0.5 and 0.8-0.9 % (n = 2). The recovery was 98.4-99.1 %. LOD and LOQ were 8 and 24 ng/zone, respectively.
J. Chromatogr. 405, 394-400 (1987). One- and two-dimensional TLC on octadecyl-bonded silica with different solvents or solvent combinations. Discussion of the chromatographic characteristics with different parameters.
J. Chromatogr. 672, 203-211 (1994). Test of the ability of the molecular connectivity model to predict Rf values in TLC for a group of sulfamides using multi-variable regression equations with multiple correlation coefficients, standard error of estimate, F-Snedecor function values and Student's t-test as criteria of fit. Prediction of the values for this property in different silica and different polar mobile phases by using the molecular connectivity model. Discussion of the relationship between structural features of sulfamides and the Rf values in TLC.
Chem. Anal. (Warsaw) 54, 1-12 (2009). An HPTLC method has been developed for estimation of modafinil in tablet formulation and stability assessment. HPTLC on silica gel with toluene - chloroform - methanol 2:2:1. The hRf value of modafinil was 46. Densitometric evaluation at 220 nm. The method was linear in the range of 100-500 ng/band. The sample compound was well separated from all degradation products. The method was suitable for analysis and also for stability studies.
J. Planar Chromatogr. 24, 474-481 (2011). TLC of the active S-(+)-enantiomer escitalopram oxalate (ESC-OX), escitalopram cyanodiol, the R-enantiomer and escitalopram N-oxide impurities on silica gel (containing beta-cyclodextrin as chiral additive) with acetonitrile - 0.1 % acetic acid - water 10:1:6:2 with chamber saturation for 30 min. Using 3 mg urea per 100 cm2 of silica-coated plates as a chiral additive also achieves a good enantiomeric separation with acetonitrile - 1 % acetic acid - ethyl acetate - methanol - water 10:1:2:4:3. Detection at 254 nm. Quantitative determination by absorbance measurement of ESC-OX at 240 nm. The hRf values of ESC-OX, escitalopram cyanodiol, the R-enantiomer and escitalopram N-oxide were 75, 40, 31, and 23, respectively. The linearity was 0.25-10 mg/10 mL (r = 0.9991). Accuracy was 99.7 %. LOD and LOQ were 13 and 44 µg/mL for ESC-OX.