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. Chromatogr. 596, 241-249 (1992). Discussion of specific features of densitometric equipment and application of modern image processing to the densitometric analysis of two-dimensional flat-bed separations with emphasis of electrophoresis. Also, discussion of the software aspects of the experimental system.
(Video-densitometric evaluation of thin layer chromatograms). Dünnschicht-Chromatographie InCom Sonderband 1996, 148-156. TLC of torasemid and metabolite on silica with toluene - xylene - 1,4-dioxane - isopropanol - NH3 1:1:3:3:2, detection under UV 254 nm. - Author's summery: "From this investigation can be concluded that video densitometry can produce results equivalent to those obtained with classical evaluation systems. If the expected greater range of linearity can be relied on is questionable; this cannot be judged yet on the basis of the limited experience."
J. Liq. Chromatogr. 23, 273-280 (2000). Description of two methods, one on the basis of relative error in yi (YWLS) and another on the basis of 1/xi as a weighting factor (XWLS), for the calculation of calibration functions and comparison with conventional ordinary (OLS) and simple weighted least square method (WLS). Instead of the coefficient of correlation, six coefficients of quality are used to characterize the quality of the calibration functions. - TLC of atrazine, propazine and simazine on silica gel using toluene - acetone 17:3. Detection under UV 254 nm; quantitation by densitometry in reflectance mode at 225 nm.
J. Planar Chromatogr. 16, 244-246 (2003). Description of a modified flatbed scanner for documentation and measurement of compounds detected as dark zones on a fluorescent background by irradiation of a layer containing a luminophor with shortwave UV radiation, termed i.a. fluorescence quench detection. HPTLC of famotidine on silica gel with ethyl acetate - methanol - toluene - conc. aqueous ammonia 40:25:20:2 with saturation and of caffeine in cola with ethyl acetate - methanol 19:1. Precision, linearity, and detection limits of famotidine and caffeine were determined. The modified office scanner in connection with Sorbfill software demonstrated the ability to quantify pharmaceuticals and food samples in chromatograms containing zones that quench fluorescence under UV at 254 nm on layers with an indicator.
J. of Chromatogr. A 1218 (19), 2820-2825 (2011). A unified procedure for image preprocessing of 2D TLC videoscans saved as JPG files is proposed for further supervised or unsupervised chemometric analysis. The procedure was based on open source software and included denoising using a median filter, baseline removal with the rollerball algorithm and nonlinear warping using spline functions. The application of the proposed procedure enabled filtration of random differences between images, such as changes in the intensity of the background as well as differences in the location of the zones. After the preprocessing only the zone intensity had an influence on the statistical analysis by principal component analysis (PCA) or other techniques. The proposed technique was successfully applied for the determination of the differences between three Carex species based on the 2D videoscans of the extracts.
Anal. Chem. 56, 19-21 (1984) Description of TLC densitometer based on photothermal deflection of an argon ion laser of 20 mW at 488 nm as the source and a 2-MW He-Ne laser as the probe. System demonstrated with a chronatogram of 1,2-naphthoquinone, phenonthrenequinone and -ionone. Detection limit 30 ng -7.5 pg.
Anal. Chim. Acta 184, 53-64 (1986). Description of background subtraction technique, the combined approach using derivative spectrometry and the adaptive Kalman filter to give 8-fold lower detection limits for polynuclear aromatic hydrocarbon compounds when compared to traditional background-subtraction methods.
Anal. Chem. 60, 2692-2694 (1988). Application of fluorescence line-narrowing spectrometry (FLNS) to a polycyclic aromatic hydrocarbon-nucleoside adduct sorbed on a TLC plate. Discussion of the effects of non-photo chemical hole burning and interfacing FLNS with the 32p-postlabeling procedure to provide for high sensitivity and selectivity analysis of TLC spots associated with fluorescing nucleoside adducts. Presentation of a calibration curve over >5 decades of concentration. Detection limit, 10 f mol.