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:

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      94 041
      TLC and RPTLC separation of porphine, selected porphyrins, and their metalloderivatives
      M. STEFANIAK, P. KUS, J. SLIWIOK* (*Department of Chemistry, Silesian University, 9, Szkolna Street, 40-006 Katowice, Poland)

      J. Planar Chromatogr. 17, 72-74 (2004). TLC of porphine, meso-mono-tert-butylporphyrin, meso-tetra-tert-butylporphyrin and their respective Zn(II), Ni(II), and Cu(II) derivatives on silica gel with n-hexane - chloroform 7:3, and on RP-18 with methanol or methanol - water 9:1 after presaturation of the plates for 30 min. The porphyrins were detected visually.

      Classification: 23a
      95 059
      Standardization and evaluation of Neem oil in pharmaceutical formulations by HPTLC
      Shruti DHURU*, Pratima TATKE, K. K. SINGH (*C.U.Shah College of Pharmacy, S.N.D.T. Women’s University, Santacruz (West) , Mumbai 400 049, India)

      IPC 56th 2004, Abstract No. G-28. Neem Oil obtained from the seed kernels of Azardirachla indica (Meliaceae) is a fixed oil known as oil of Margosa. An HPTLC method is reported for the analysis of Neem oil as a bulk drug and formulations containing oil. TLC of neem oil extracted with chloroform, on silica gel with chloroform - n-hexane - methanol 18:2:1. Quantitative determination by scanning at 254 nm. The linearity range was 100 – 500 mg/mL. Formulations were found to contain 0.35 g/g of Neem Oil.

      Classification: 32a
      96 075
      Standardization of crude extract of neem seed kernels (Azadirachta indica A
      H. AGRAWAL, N. KAUL, A.R. PARADKAR, K. R. MAHADIK* (*Department of Quality Assurance Techniques, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Erandwane, Pune 411038, Maharashtra, India, krmahadik@rediffmail.com)

      Juss) and commercial neem based formulations using HPTLC and extended length packed-columns SFC method. Chromatographia 62 (3-4), 183-195 (2005). Two chromatographic techniques are described for the separation and quantitative determination of azadirachtin A and B, salannin, and nimbin present in the crude extract of neem seed kernels and commercial neem based formulations. HPTLC separation of markers on silica gel with ethyl acetate - benzene 7:3. Visualization under UV 254 nm. The other technique was based on extended length packed column supercritical fluid chromatographic (PC-SFC) separation of the markers. Validation of both methods in terms of precision, robustness, recovery, limits of detection and quantitation. The analysis of variance (ANOVA) and Student’s t-test were applied to correlate the results of quantitative determination of markers by means of HPTLC and PC-SFC method.

      Classification: 32e
      97 086
      Development of HPTLC Method for simultaneous estimation of captopril and hydrochlorothiazide in combined dosage form
      S. G. WALODE*, M.S. CHARDE, M.R. TAJNE, A.V.KASTURE (*Dept. of Pharm. Sciences, Nagpur University Campus, Amravati Road, Nagpur 440033, India)

      Indian Drugs 42 (6), 340-344 (2005). HPTLC of captopril and hydrochlorothiazide in tablets on silica gel with methanol - toluene - ethyl acetate - glacial acetic acid 2:12:6:1. Quantitative determination by absorbance measurement at 219 nm. The Rf value of hydrochlorothiazide was 0.38 and of captopril 0.57. The calibration curve response was 4-14 µg for both drugs. Recovery was determined by standard addition method. The percent recovery by area was found to be 100.25 for captopril and 99.98 for hydrochlorothiazide. The method was suitable for routine quality control of such formulations.

      Classification: 32a
      98 042
      Chromatographic separations of phenolic acids by normal-phase TLC
      M. WAKSMUNDZKA-HAJNOS*, H. D. SMOLARZ, R. NOWAK (*Dept. of Inorg. and Anal. Chem., Med. Acad., Staszica 6, 20-081 Lublin, Poland)

      Retention behaviour on polar adsorbents (silica, alumina, polyamide) with non-aqueous mobile phases. Acta Chrom. 9, 38-54 (1999). TLC of benzoic and cinnamic acid derivatives on silica gel 60 H compared with that on alumina oxide 60 G and polyamide layers with non-aqueous ternary mobile phases comprising a non-polar diluent (n-heptane), a polar modifier (2-propanol, dioxane, tetrahydrofuran and ethyl acetate) and 2 % acetic acid in horizontal chambers. Visualization under UV 254 nm, and by spraying with diazotized sulphanilic acid in 10 % sodium bicarbonate solution, or with a 2 % solution of ferric chloride. Chromatogram parameters and the correlation diagrams were used for comparison of separation selectivity.

      Classification: 11a
      99 122
      TLC-Densitometric analysis of artemisinin for the rapid screening of high-producing plantlets of Artemisia annua L
      T. KOOBKOKKRUAD, A. CHOCHAI, C. KERDMANEE, W. DE-EKNAMKUL* (*Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Thailand, dwanchai@chula.ac.th)

      Phytochem Anal. 18, 229-234 (2007). HPTLC of Artemisia annua leaves on silica gel with hexane – ethyl acetate – acetone 16:1:1. Detection by exposing to ammonia vapor at 100ºC for 2 hours. Quantitative determination by absorbance measurement at 320 nm. Linearity is between 0.5 and 12 µg/mL and the limit of detection is 0.5 µg/mL. The method is as sensitive and accurate as the HPLC-UV method involving a pre-column reaction.

      Classification: 32e
      100 068
      A Novel & Validated HPTLC method for the analysis of cymbopogan Citratus
      S. BABOOTA*, M. FAIYAZUDDIN, S. AHMAD, J. ALI, A. AHUJA, A. KUMAR (*Faculty of Pharmacy, Jamia Hamdard, New Delhi, India)

      59th Indian Pharmaceutical Congress F-127, 420, (2007). HPTLC of citral (active constituent of cymbopogan citratus) on silica gel with toluene - ethyl acetate 17:3. Detection by spraying with vanillin-sulfuric acid reagent. Densitometric evaluation at 595 nm. The hRf value of citral was 55. Linearity was between 1 and 10 ng/zone. The citral content in cymbopolon citratus was found to be 67 - 81 %.

      Classification: 32e
      101 032
      Effect of temperature on the RF of porphine and its metal complexes in normal and reversed-phase TLC
      Marta STEFANIAK (Department of Chemistry, Silesian University, 9 Szkolna Street, 40-006 Katowice, Poland; m_stefaniak@op.pl)

      J. Planar Chromatogr. 21, 201-204 (2008). TLC of porphine and its complexes with Cu(II), Ni(II), and Zn(II) on silica gel with chloroform - n-hexane 5:5, 3:2, and 7:3; and on RP-18 with methanol, methanol - water 9:1, ethanol, and ethanol - water 9:1 at 5+/- 2, 15+/- 2, 25+/-2, 35+/-2, 45+/2, and 55+/-2°C. Detection under white light. An increased temperature results in increased Rf values.

      Classification: 23a