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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      107 116
      Simultaneous TLC-densitometric analysis of atenolol and lercanidipine hydrochloride in tablets
      P.V. DEORE*, A.A. SHIRKHEDKAR, S.J. SURANA (*R.C. Patel College of Pharmacy, Department of Pharmaceutical Chemistry Shirpur Dist. Dhule (M.S.), India, 425 405)

      Acta Chromatographica 20(3), 463-473 (2008). TLC on silica gel with toluene – methanol – triethylamine 35:15:1. The hRf of atenolol and lercanidipine hydrochloride was 24 and 68, respectively. Detection and quantitative determination by absorbance measurement at 275 nm. The linearity was in the range of 2-12 µg/band for atenolol and 400–2400 ng/band for lercanidipine hydrochloride. The recovery was 98.9 % for atenolol and 99.7 % for lercanidipine hydrochloride.

      Classification: 32c
      107 133
      Validated HPTLC method for quantification of epicatechin in extracts of leaves of Cassia fistula Linn
      D.H. NAGORE*, V.K. GHOSH, M.J. PATIL, A.M. WAHILE (*Tulip Lab Pvt. Ltd. F-20/21 MIDC Ranjangaon, Tal-Shirur, Pune 412220, India)

      Acta Chromatographica 22 (2), 259-265 (2010), DOI:10.1556/AChrom.22.2010.2.8. Description of a new, simple, precise, and accurate method for quantification of (-)-epicatechin in the leaves of Cassia fistula by HPTLC on silica gel with toluene – ethyl acetate – formic acid – methanol 205:3:1:1. Quantification by densitometry at 280 nm. The linearity was in the range of 200–800 ng/band. Method precision was 1.4 %RSD and instrumental precision 1.1 %RSD. Recovery was 98.1 % and specificity regarding matrix was given.

      Classification: 32e
      107 152
      (Determination of gentamicin in fermentation broth by thin-layer chromatography) (Chinese)
      X. YANG* (Yang Xuming), J. ZHANG (Zhang Jiali), J. LI (Li Jianghua) , J. FANG (Fang Jun) (*School of Med. & Pharm., Jiangnan Univ., Wuxi, Jiangsu 214122, China)

      J. of Food Sci. & Biotechnol. 27(5), 129-133 (2008). TLC of gentamicin on silica gel with the lower phase of chloroform – methanol – 25 % ammonia 5:4:3 and after chamber saturation with the upper phase of the developing solvent. Detection by exposure to iodine vapor. Identification by comparison of the hRf values with the standards of the main components of gentamicin (Cl, C1 and C2). The results were compared with results obtained by HPLC and good agreement between both methods was found.

      Classification: 32c
      108 019
      Some new features of direct analysis in real time mass spectrometry utilizing the desorption at an angle option
      Elena CHERNETSOVA*, A. REVELSKY, Gertrud MORLOCK (*Institute of Food Chemistry, University of Hohenheim, Garbenstrasse 28, 70599 Stuttgart, Germany, chern_es@mail.ru)

      Rapid Commun. Mass Spectrom. 25, 2275-2282 (2011). The authors explored the possibility of the desorption at an angle scanning analysis of surfaces from direct analysis in real time mass spectrometry (DART-MS), including the coupling of planar chromatography with DART-MS. A method for the visualization of the impact region of the DART gas stream was developed, as well as the DART-MS detectability of liquids was increased, improving the capabilities of DART-MS in trace analysis.

      Classification: 4e
      108 039
      A comparative study of the lipid composition of the brain of chicken and rat during myelination
      Fatma HELMY*, A. MORRIS (*Department of Biological Sciences, Delaware State University, 1200 N. DuPont Highway, Dover, DE 19901, USA; fhelmy@desu.edu)

      A chromatographic and densitometric analysis. J. Planar Chromatogr. 24, 325-330 (2011). TLC on silica gel with A) 1-propanol - ethyl acetate - chloroform - methanol - water 50:50:50:21:18 for phospholipids, B) chloroform - methanol 9:2 for glycolipids (phospholipids remain at the origin), and C) chloroform - methanol - water 280:99:11 for the resolution of two ethanolamin plasmalogens (PE1, PE2). TLC on aluminum oxide with chloroform - methanol - water 65:30:4 for choline lipids (e. g., phosphatidyl choline and sphingomyelin). 2D TLC on aluminum oxide after a hydrolysis step (1 % HCl) with mobile phase A in the first direction and hexane - diethyl ether 4:1 in the second direction for alkenyl lipids, followed by reaction with Schiff leucofuchsin reagent. Different detection methods were used: thionine reagent, Biebrich scarlet reagents (for cholin phopholipids), and the periodic acid Schiff reaction (for detection of glycolipids). Quantitative determination by densitometry at 600 nm (thionine), or 560 nm (leucofuchsin), or 520 nm (Biebrich).

      Classification: 11e
      108 065
      Thin-layer chromatographic selective and stability-indicating method for assay of cefixime in pharmaceuticals
      B.K. SINGH*, D.V. PARWATE, S. SRIVASTAVA, S. K.SHUKLA (*Department of Chemistry, RTM Nagpur University Campus, Amravati Road, Nagpur, India-440033; singhbab2001@rediffmail.com)

      J. Planar Chromatogr. 24, 524-528 (2011). TLC of cefixime on silica gel with toluene - ethyl acetate - formic acid - water 5:29:11:5 with chamber saturation for 30 min at 25 +/- 2 °C. The hRf value was 54. Quantitative determination by densitometry in absorbance mode at 293 nm. Linearity was between 500 and 1500 ng. The repeatability (%RSD) was below 2 %. The limit of detection and the limit of quantification was 9 and 42 ng/zone, respectively. The recovery was between 98.9-100.3 %.

      Classification: 28a
      108 097
      Identification and quantification of triterpenoid centelloids in Centella asiatica (L
      J. JAMES, I. DUBERY* (*Department of Biochemistry, University of Johannesburg, P. O. Box 524, Auckland Park, 2006, South Africa, idubery@uj.ac.za)

      J. Planar Chromatogr. 24, 82-87 (2011). TLC of crude extracts and madecassoside, asiaticoside, madecassic acid, and asiatic acid on silica gel with concentration zone with chloroform - glacial acetic acid - methanol - water 15:8:3:2; the hRf value was 45, 55, 94, and 97, respectively. Detection by spraying with anisaldehyde-sulfuric acid reagent, followed by heating at 95 °C for 10 min or until the colored zones appeared. The correlation coefficients were between 0.9904 and 0.9982 and linearity was in the range of 1.25-10 nmol, corresponding to approximately 0.5-5 µg/zone for the acids and 1.2-10 µg/zone for the glycosides. The LOD and LOQ was 300 and 720 ng/zone for the sapogenin and saponin, respectively, and 500 and 1200 ng/zone. The average precision was less than 4 % for standards and between 4-6 % for samples.

      Classification: 32e
      108 114
      Comparison of NP-TLC and RP-TLC with densitometry to quantitative analysis of tocopherol acetate in pharmaceutical preparation
      Alina PYKA*, D. NABIALKOWSKA, K. BOBER, M. DOLOWY (*Department of Analytical Chemistry, Faculty of Pharmacy, Medical University of Silesia, 4 Jagiellonska Street, 41-200, Sosnowiec, Poland, apyka@sum.edu.pl)

      J. Liq. Chromatogr. Relat. Technol. 34, 2548-2464 (2011). HPTLC of tocopherol acetate (1) and tocopherol (2) in oral fluid vitamin E on silica gel with chloroform - cyclohexane 11:9. Quantitative determination by absorbance measurement at 202 nm for (1) and 272 nm for (2). The hRf values of (1) and (2) were 47 and 38, respectively. Linearity was in the range of 2-8 µg/band for (1) and (2). Limits of detection and quantification were found to be 50 and 150 ng/zone for (1). Precision was below 2 %. The intermediate/inter-day/intra-day precision was 0.4 % (n = 6). Recovery (by standard addition) was in the range between 99.8-101.5 %. Tocopherol acetate was better separated from tocopherol using normal phase TLC than by reversed phase TLC.

      Classification: 32a
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