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. Planar Chromatogr. 32, 343-346 (2019). HPTLC of tetrahydrocannabinol (1), cannabidiol (2) and cannabinol (3) on silica gel with n-hexane - diethyl ether 4:1. Quantitative determination by absorbance measurement at 206 nm. The hRF values for (1) to (3) were 48, 56 and 41, respectively. Linearity was between 0.5 and 9.5 µg/zone for (1) to (3). The intermediate precision was below 6 % (n=6). The LOD and LOQ were 710 and 2370 ng/zone for (1), 290 and 980 ng/zone for (2) and 380 and 1280 ng/zone for (3), respectively. Recovery rate was 97.8 % for (1), 93.5 % for (2) and 107.2 % for (3).
J. Planar Chromatogr. 22, 29-33 (2009). HPTLC of theophylline (extracted at pH 8.5 with chloroform - isopropanol 4:1 from post-mortem blood after acid hydrolysis) on silica gel in a twin trough chamber with chloroform - methanol 9:1. Quantitative determination by absorbance measurement at 277 nm. Polynomial regression in the range of 0.5-20 µg/mL. The limit of detection was 0.5 µg/mL (S/N = 3). Intra-day and inter-day repeatability was between 0.5-0.8 % and 0.5-1.3 %, respectively, for three different concentrations in the range of 0.5-10 µg/mL. Recovery was 89.1-93.4 % at a concentration of 10 µg/mL and pH 8.3-8.6. An average analytical recovery of 89.9 % was achieved at pH 8.5 with a relative standard deviation of 2.2 %. Theophylline was stable in methanolic solution and during chromatography.
Budapest Chromatography Symposium, June 13, 1985. EGYT 1855: TLC on silica with chloroform in the first dimension, ethyl acetate - propanol -10 % acetic acid 2:2:1 in the second dimension. Staining with Dragendorff reagent; densitometry by absorbance at 450 nm. GYKI 51 189: TLC on silica with benzene in the first dimension, benzene - ethyl acetate 20:8 in the second dimension; detection by UV 254 nm, densitometry by absorbance at 300 nm.
Anal. Chim. Acta 225, 137-146 (1989). One- and two-dimensional TLC of residues of veterinary tranquillizers and the ß-blocker carazolol on silica with 1) acetone – dichloromethane – 25% NH3 40:60:1 and 2) acetone – 25% NH3 100:0.1 and 3) acetone. Detection by spraying with 1) Dragendorff’s reagent, 2) vanillin-phosphoric acid and 3) sulfuric acid – ethanol – ether 2:10:2. Limits of identification range, 1–2.5 µg/kg.
J. Planar Chromatogr. 7, 95-97 (1994). Identification of herbs and herbal products by TLC followed by photo documentation acc. to H. Wagner, S. Bladt, E.M. Zgainski, Plant Drug Analysis, Springer Publishers, Berlin, Germany (1984) and "finger printing" comparison. Reported: TLC of plant extracts on silica. Tonka beans with methanol; main component of interest was coumarin. Bloodroot with propanol - formic acid - water 90:1:9; main component of interest was berberine hydrochloride. Calamus with toluene - ethyl acetate 93:7, visualization by spraying with vanillin-sulfuric acid reagent; main component of interest was asarone. Yohimbe bark with toluene - ethyl acetate - diethyl amine 7:2:1, visualization under UV 356 nm; main component of interest was yohimbine hydrochloride. Mandrake with chloroform - methanol 9:1, visualization by spraying with sulfuric acid; main component of interest was podophyllum resin. Buckthorn bark with ethyl acetate - methanol - water 100:27:20, visualization under UV 356 nm; main components of interest were frangulins A and B.
Proc. 9th Internat. Symp. Instr. Chromatogr., Interlaken, April 9.-11., 161-162 (1997). Identification of LSD, MBDB and atropine by HPTLC-FTIR; it is possible to distinguish MBDB unequivocally from its closely related 3,4-methylenedioxyamphetamine derivatives MDA, MDMA, and MDE and from BDB on the basis of RF values and DRIFT spectra. Identification of N-ethyl-3,4-methylenedioxyamphetamine and its major metabolites in urine. Detection of cocaine and benzoylecgonine in urine by coupling of AMD and FTIR spectroscopy, using a two-dimensional HPTLC development with FTIR; identification limits for cocaine and benzoylecgonine are 400 ng/mL and 180 ng/mL, respectively. Determination of 11-nor-D9 THC-9-carboxylic acid on acid-resistant silica with detection limits of 4 ng/mL in UV and 14 ng/mL in IR allow both qualitative and quantitative analysis.
J. Planar Chromatogr. 13, 171.175 (2000). HPTLC of morphine, caffeine, and paracetamol on silica gel with ethyl acetate - methanol - ammonia 17:2:1. Visualization under UV 253 nm. Detection limits were 0.5 µg for morphine and 0.2 µg for caffeine and paracetamol.
J. Liq. Chromatogr. Relat. Technol. 35, 1213-1221 (2012). HPTLC of nicotine in cigarettes on silica gel with n-hexane - methylene chloride - methanol 4:16:3. Quantitative determination by absorbance measurement at 254 nm. Linearity was in the range of 0.1-1 mg/mL. Precision was estimated with an %RSD below 2.0. Limits of detection and quantification were 0.008 mg/mL and 0.02 mg/mL, respectively. The method provides acceptable intra-day and inter-day precision for nicotine. Recovery was between 97.5 and 98.4 %, respectively.