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. Planar Chromatogr. 22, 127-131 (2009). HPTLC of 6-gingerol, extracts of Suprabha and market samples of ginger on silica gel (prewashed with methanol) with n-hexane - acetone 18:7 in a twin trough chamber saturated for 4 min at 20 +/- 4 °C and 36 +/- 3 % relative humidity. Quantitative determination by absorbance measurement at 286 nm. The limit of detection and quantification was 40 and 150 ng/band, respectively.
Anal. Chim. Acta 641 (1-2), 52-58 (2009). Comparison of classical filtering techniques (Savitzky–Golay, Adaptive Degree Polynomial Filter, Fourier denoising, Butterworth and Chebyshev IIR filters) and wavelet shrinkage (31 mother wavelets, 3 thresholding techniques and 11 decomposition levels) with the original noisy signal and a reference signal which was denoised experimentally by averaging 64 measurements. The best similarity to the reference signal was obtained with filters, however the signal was slightly oversmoothed. The wavelet shrinkage method gave less denoised signals. There was a significant influence of the thresholding technique and decomposition level, and best conditions were at level 2 or 3 and soft thresholding), whereas changing of the mother wavelet almost did not change the result. The presented results can be used as general recommendations for denoising densitometric fingerprints before applying further chemometric algorithms. The best choices were: Savitzky–Golay filter of appropriate window width (optimized against autocorrelation) or wavelet shrinkage with Haar wavelet, soft thresholding and high decomposition level.
J. AOAC Int. 92, 699-702 (2009). HPTLC of a dinitrophenyl-lysine derivative (produced by incubation with 1-fluoro-2,4-dinitrobenzene and hydolyzation with hydrochloric acid) on silica gel (prewashed with methanol) with n-propanol - 25 % ammonia 7:3 in a twin trough chamber. Quantitative determination by absorbance measurement at 360 nm. The method was linear (r2 = 0.9991) in the range from 12.5 to 125.0 ng/band. Repeatability (%RSD) and intermediate precision (%RSD) in matrix were 0.8 % and 3.6 %, respectively. Recoveries of spiked samples at two levels ranged from 72 to 85 % with RSD from 3 to 8%. This method is a reliable, high throughput and low cost analytical method for the salmon feed industry.
Abstract No. F-276, 61st IPC (2009). HPTLC of buclizine hydrochloride on silica gel with methanol - chloroform - ammonia 8:1:1 %. Quantitative determination by absorbance measurement at 234 nm. The calibration curve was linear in the range of 100-700 ng/spot. The limit of detection and limit of quantification were 20 and 100 ng/spot, respectively.
60th Indian Pharmaceutical Congress PA-202 (2008). HPTLC of allyl disulphide (an active ingredient of Allium sativum, garlic) on silica gel with n-hexane. The hRf value was 52. Quantitative determination by absorbance measurement at 298 nm. The linearity range was 200-1200 ng/spot. Several polyherbal formulations containing garlic were analyzed with the proposed method using allyl disulphide as marker.
60th Indian Pharmaceutical congress PA-234 (2008). HPTLC of omeprazole on silica gel with chloroform - methanol 9:1. The hRf value was 39. Quantitative determination by absorbance measurement at 302 nm. The method was linear in the range of 5-3000 ng/spot, recovery was 99.5 %. The method was suitable for routine quality control of formulations.
Abstract No. F-283, 61st (2009). HPTLC of naproxen sodium on silica gel with toluene - ethyl acetate - acetic acid 15:3:2. The hRf value was 63. Quantitative determination by absorbance measurement at 230 nm. The method was linear in the range of 100-500 ng/band.
60th Indian Pharmaceutical Congress PA-233 (2008). HPTLC of glycyrrhizic acid on silica gel with toluene - ethyl acetate - glacial acetic acid 25:15:1. The hRf value of glycyrrhizic acid was 52, linearity was between 500-1000 ng/mL and recovery was 99.2 %. Withanolide A was separated with toluene - ethyl acetate - glacial acetic acid 20:20.1. The hRf value of withanolide A was 44, linearity was in the range of 400-1000 ng/mL and recovery was 99.4 %.