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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      105 064
      Development and validation of analytical method for simultaneous determination of telmisartan and amlodipine besylate in bulk and tablets by HPTLC
      A. DHOBI*, N. VEKARIYA, G. PATEL, R. DHOLAKIYA, C. SHASHTRY (* Shree Dhanvantary Pharmacy College, Kim, Gujarat, India)

      Abstract No. F-159 61st IPC (2009). HPTLC of telmisartan and amlodipine besylate on silica gel with tetrahydrofuran - dichloroethane - methanol - 25 % ammonia 30:10:5:2. Both compounds were well resolved with hRf values of 22 and 45 for telmisartan and amlodipine besylate respectively. Densitometric evaluation at 326 nm. The method was found to be linear in the range of 1200-7200 ng/band for telmisartan and 400-1400 ng/band for amlodipine besylate.

      Classification: 32a
      105 087
      Simultaneous determination of irbesartan and hydrochlorothiazide by HPTLC method
      B. MEHTA*, S. MORGE (*Dept. of Chem. University of Mumbai, Santacruz (E), Mumbai, 400098, India)

      Indian Drugs 47(2), 71-74 (2010). HPTLC of irbesartan and hydrochlorothiazide on silica gel with acetone - chloroform - ethyl acetate - methanol 6:6:6:1. The plates were preconditioned for 10 min in a saturated chamber prior to development. The hRf value of irbesartan was 27 and of hydrochlorothiazide 37. The linearity was 1500-9000 ng/band and 125-750 ng/band for irbesartan and hydrochlorothiazide respectively. The average recovery for both drugs was 99.4-99.5 %.

      Classification: 17c, 18a, 32a
      105 108
      Purification of Azadirachta indica seed cake and its impact in nutritional and antinutritional factors
      M. SAXENA, K. RAVIKANTH, A. KUMAR*, A. GUPTA, B. SINGH, A. SHARMA (*Phytochemistry and Analytical Laboratory, R and D Centre, Ayurvet Limited, Baddi, H.P., India, akumar@ayurvet.in)

      J. Agric. Food Chem. 58, 4939-4944 (2010). HPTLC of azadirachtin (1) and salannin (2) in the seeds of Azadirachta indica on silica gel with hexane - ethyl acetate1:3. Quantitative determination by absorbance measurement at 220 nm. The hRf values of (1) and (2) were 18 and 30, respectively. Linearity was between 50 and 200 ppm for both (1) and (2). Recovery was 99.9 % for (1) and 99.3 % for (2). The intermediate precision was 88.5 % and 87.5 % for (1) and (2), respectively (n=3). The HPTLC and HPLC methods gave comparable results.

      Classification: 32e
      106 006
      Sample preparation for TLC
      J. SHERMA (Department of Chemistry, Lafayette College, Easton, Pennsylvania, USA, shermaj@lafayette.edu)

      Encyclopedia of Chromatography Third Edition 1, 2111-2115 (2009). The author describes the sample preparation methods prior qualitative and quantitative analysis by TLC and HPTLC. Classical extraction and clean-up methods include liquid-liquid extraction and soxhlet extraction. Modern methods such as solid phase extraction (SPE), pressurized liquid extraction (PLE), supercritical fluid extraction (SFE) and immunoaffinity (IA) extraction and clean-up are also described.

      Classification: 1b
      106 031
      Development and validation of a HPTLC method for determination of psoralen in Psoralea corylifolia (Bavachi)
      P. KHUSHBOO*, V. JADHAV, V. KADAM (*Dept. of Q. A., Bharati Vidyapeeth’s College of Pharmacy, Sector 8, CBD Belapur, Navi-Mumbai 400614, India, drvmjadhav_bvcop@rediffmail.com)

      International Journal of ChemTech Research 1(4), 1122-1128 (2009). TLC on silica gel with toluene - ethyl acetate 3:1. The hRf value of the furanocoumarin psoralen was 47. Densitometric evaluation at 299 nm. The method was linear in the range of 10-100 ng/band. The average recovery was 99.7 %.

      Classification: 8b
      106 047
      High-performance thin-layer chromatographic method for quantification of betulinic acid in extracts of leaves of Orthosiphon stamineus benth
      K. HUSSAIN*, Z. ISMAIL, A. SADIKUN (*Dept. of Pharmaceutical Chem. School of Pharmaceutical Science, University Sains Malaysis, Pulau Pinang 11800, Malaysia, hussain_761@yahoo.com)

      Asian Journal of Chemistry 23(2), 977-979 (2011). Part of the aqueous extract of Orthosiphon stamineus (Lamiaceae) was chromatographed on a silica gel column and eluted with n-hexane - ethyl acetate 3:2. The eluate was concentrated in order to obtain betulinic acid for use as standard solution. TLC on silica gel with n-hexane - ethyl acetate - formic acid 150:100:1. For derivatization the plate was sprayed with anisaldehyde reagent followed by heating at 100 °C for 10 min. Quantification of betulinic acid by densitometric measurement in fluorescence mode at 366 nm. The method was linear in the range of 0.2-500 µg/band. The recovery was 96.1-98.4 %.

      Classification: 11a
      106 064
      Simultaneous quantification of glycyrrhetinic acid and apigenin using HPTLC from Glycyrrhiza glabra Linn
      P. RATHEE*, Sushila RATHEE, Deepti AHUJA (no address given)

      Eurasian J. Anal. Chem 5(1), 95-103 (2010). An HPTLC method is reported for quantification of glycyrrhetinic acid and apigenin in Glycyrrhiza glabra. Methanolic and acidic-methanolic extracts are subjected to chromatographic separation on silica gel with ethyl acetate - ethanol - water - 25 % ammonia 63:20:4:1. The method was linear in the range of 160-960 ng/band for glycyrrhetinic acid and 32-96 ng/band for apigenin. Glycyrrhiza glabra was found to contain 0.65 % of glycyrrhetinic acid and 0.0004 % of apigenin.

      Classification: 11a
      106 080
      Densitometric HPTLC method for analysis of oleanolic acid in Achyranthes aspera L
      F.A. MEHTA*, B.G. PATEL*, S.S. PANDYA, K.B. AHIR (*Indukaka Ipcowala College of Pharmacy, P. O. Box 53, PO Vithal Udyognagar, Beyond GIDC Phase IV, New Vallabh Vidyanagar, Gujarat 388 121, India; fm999@ymail.com)

      J. Planar Chromatogr. 23, 289-292 (2010). HPTLC of oleanolic acid on silica gel pre-washed with methanol and acetone using toluene - ethyl acetate - formic acid 9:1:2 in a twin-trough chamber saturated for 30 min. Detection by spraying with 10 % sulfuric acid in ethanol, followed by heating at 130 °C for 3 min. Quantitative determination by densitometry at 490 nm. Linearity was between 600 and 1000 ng/band; the correlation coefficient was 0.994. The limit of detection and quantification was 27 and 82 ng/band. The repeatability (%RSD, n = 6) was 0.61 %, and the recovery was between 97.8 and 99.2 %. The inter-day and intra-day precision (RSD, n = 3) was 1.25 and 0.83 % (600 ng/band), 1.00 and 1.03 % (800 ng/band), and 1.11 and 0.81 % (1000 ng/band).

      Classification: 15a
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