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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      100 092
      Development and validation of HPTLC method for determination of 6-gingerol in herbal extracts
      A. GOEL*, G.N. SINGH, F.J. AHMED, R.M. SINGH, R. GOEL (*Central Indian Pharmacopoeia Laboratory, Govt. Of India, Ministery of Health and Family Walfare, Ghaziabad, Uttar Pradesh, India)

      59th Indian Pharmaceutical congress F-220, 442, (2007). HPTLC of 6-gingerol in herbal extracts on silica gel with n-hexane - ethyl acetate - ammonia 14:5:1 in a chamber saturated for 45 min. Densitometric evaluation at 254nm. The hRf value of 6-gingerol was 52. The method was linear in the range of 100 - 1200 ng/zone.

      Classification: 32e
      100 135
      Separation and evaluation of free-radical scavenging activity of phenol components of green, brown, and black leaves of Bergenia crassifolia by using HPTLC-DPPH method
      O. POZHARITSKAYA, S. IVANOVA, A. SHIKOV*, V. MAKAROV, B. GALAMBOSI (*Interregional Center “Adaptogen”, St. Petersburg, Russia; alexs79@mail.ru)

      J. Sep. Sci. 30, 2447-2451 (2007). HPTLC of free gallic (1) and ellagic (2) acids, arbutin (3), hydroquinone (4), and bergenin in the green, brown and black leaves of Bergenia crassifolia on silica gel with toluene – ethyl acetate – formic acid – methanol 15:15:4:1. Quantitative determination by absorbance measurement at 280 nm. Antiradical activity of each component was determined by postchromatographic 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) derivatization and densitometric scanning at 517 nm as negative peak. Linearity was between 40 and 140 ng/zone, 240 and 720 ng/zone, 150 and 980 ng/zone, and 90 and 230 ng/zone for (1), (2), (3), and (4), respectively. The limit of detection was 30, 200, 90, and 40 ng/zone for (1), (2), (3), and (4), respectively. All compounds of the extract excluding bergenin were capable of scavenging DPPH radicals.

      Classification: 32e
      100 165
      A validated quantitative HPTLC method for analysis of biomarkers in Ficus carica L
      A.P. SINGH, D.P. SINGH, S. SRIVASTAVA, R. GOVINDARAJAN, A.K.S. RAWAT* (*Pharmacognosy and Ethnopharmacology Division, National Botanical Research Institute, Lucknow-226001, India; pharmacognosy1@rediffmail.com)

      J. Planar Chromatogr. 20, 437-441 (2007). HPTLC of the 4 biomarkers bergapten, psoralen, rutin, and chlorogenic acid, on silica gel with ethyl acetate - formic acid - acetic acid - water 20:2:2:5 for chlorogenic acid and rutin and with petroleum ether - diethyl ether - acetic acid 5:5:1 for bergapten and psoralen in a saturated twin-trough chamber. Quantitative determination at 317 nm.

      Classification: 32e
      101 063
      Chromatographic determination of iridoids in Stachys recta, and investigation of inorganic elements by X-ray fluorescence spectroscopy
      Erzsébet HÁSNAGY-RADNAI*, K. PINTYE-HÓDI, S. CZIGLE, T. MARTINEK, G. JANICSÁK, I. MÁTHÉ, I. ERÖS (*Institute of Pharmakognosy, University of Szeged, Eötvös 6, 6720 Szeged, Hungary; haznagy.radnai@pharm.u-szeged.hu)

      J. Planar Chromatogr. 21, 27-32 (2008). TLC of extracts of Stachys recta and harpagide, acetylharpagide, harpagoside, ajugoside, and aucubin on silica gel with chloroform - methanol - water 25:10:1. Visualization by spraying with Ehrlich’s reagent (1 % solution of dimethylaminobenzaldehyde in concentrated hydrochloric acid) followed by heating at 105 °C for 5 min. Densitometric evaluation at 540 nm.

      Classification: 32e
      102 046
      Quantitative HPTLC analysis of artemisinin in dried Artemisia annua L
      Valeria WIDMER, D. HANDLOSER, E. REICH* (*CAMAG Laboratory, Sonnenmattstr. 11, 4132 Muttenz, Switzerland; eike.reich@camag.com)

      J. Liq. Chromatogr. Relat. Technol. 30, 2209-2219 (2007). HPTLC of artemisinin in Artemisia annua on silica gel with cyclohexane - ethyl acetate - acetic acid 20:10:1 in a twin-trough chamber saturated for 20 min. Detection by immersion in modified anisaldehyde reagent (20 mL acetic acid, 4 mL sulfuric acid, 2 mL of anisaldehyde in a mixture of 100 mL ethanol and 80 mL water) for 1 s. After 1 min the plate was heated at 100 °C for 12 min. Quantitative determination by fluorescence measurement at 520 nm with cut-off filter at 540 nm.

      Classification: 15a, 32e
      103 091
      Validation of a high-performance thin-layer chromatography/ densitometry method for the quantitative determination of glucosamine in a herbal dietary supplement
      Virginie ESTERS*, L. ANGENOT, Viviane BRANDT, M. FRÉDÉRICH, Monique TITS, CH. VAN NERUM, J.N. WAUTERS, P. HUBERT (*Laboratory of Pharmacognosy, Department of Pharmacy, University of Liège, CHU, B36, Avenue de l’Hôpital 1, 4000 Liège, Belgium)

      J. Chromatogr. A 1112 (1-2), 156-164 (2006). HPTLC of glucosamine in a dietary supplement containing dried extracts of the main plants traditionally used for rheumatic disorders, on silica gel with a saturated mixture of 2-propanol - ethyl acetate - ammonia (8 %) 1:1:1. Detection by dipping into a modified anisaldehyde reagent and heating at 120 °C for 30 min in a drying oven. Quantitative determination by absorbance measurement at 415 nm. Validation of the method by applying the novel validation protocol proposed by a commission of the Société Française des Sciences et Techniques Pharmaceutiques. Relative standard deviations for repeatability and intermediate precision were between 4.9 and 8.6 %, accuracy was good, the two-sided 95 % beta-expectation tolerance interval was within the acceptance limits of 85 and 115 % on the whole analytical range (800 - 1200 ng of glucosamine).

      Classification: 32e
      103 127
      HPTLC method for analysis of whithaferin-A in Ashwagandha (Withania somnifera)
      P.S. NAYAK*, S.D. UPADHYAYA, A. UPADHYAYA (*Department of Crop and Herbal Physiology, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur M. P. 482004 India; preetisagarnayak@rediffmail.com)

      J. Planar Chromatogr. 22, 197-200 (2009). HPTLC of whithaferin A on silica gel with toluene - ethyl acetate - formic acid 5:5:1 in a twin trough chamber saturated for 20 min at 25 +/- 2 °C and 50 +/- 5 % relative humidity. Detection under UV light and by dipping into freshly prepared p-anisaldehyde reagent, followed by heating at 110 °C for 10 min. Quantitative determination by absorbance measurement at 200 nm. The limit of detection and quantification was 100 and 800 ng/zone, respectively. The high sample throughput is useful for routine analysis of the preparation in industrial quality control and regulatory laboratories.

      Classification: 32e
      103 155
      Evaluation of traditional Chinese herbal medicine
      R. TIAN (Tian RunTao)*,P. XIE (Xie PeiShan), H. LIU (Liu HePing) (*Chromap Institute of Herbal Medicine Research, Zhuhai, Guangdong, China)

      J. Chromatogr. A 1216 (11), 2150-2155 (2009). Chaihu roots (Bupleuri radix), roots of Bupleurum chinense and Bupleurum scorzonerifolium are monographed in the Chinese Pharmacopoeia. Evaluation of the quality of 33 lots of authenticated Chaihu samples versus 31 lots of commercial samples by HPLC-ELSD and HPTLC analysis of the principal bioactive components (saikosaponins). Data acquired from HPLC fingerprints and HPTLC fluorescent images was analyzed by chemometrics for similarity and pattern recognition, including artificial neural networks, k-nearest neighbor (k-NN) and an expert’s panel. The k-NN classifier showed good performance with sufficient flexibility for processing HPTLC fingerprint images. These images were otherwise not easily dealt with by other algorithms due to the shift of hRf values and varying hue/saturation of the band colors between different TLC plates. The two chromatographic fingerprint methods are complementary measures for quality control. Chaihu roots from different species of the genus Bupleurum could readily be distinguished from each other. Commercial samples of Chaihu can easily be classified by investigating the content of major saikosaponins.

      Classification: 32e
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