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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      127 024
      Lovastatin in lactone and hydroxy acid forms and citrinin in red yeast rice powders analyzed by HPTLC-UV/FLD
      I. KLINGELHOFER, Gertrud MORLOCK* (*Institute of Nutritional Science, Chair of Food Science, and Interdisciplinary Research Center, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany, Gertrud.Morlock@uni-giessen.de)

      Anal. Bioanal. Chem. 411, 6655-6665 (2019). HPTLC of lovastatin present in lactone (1) and hydroxy acid forms (2) and mycotoxin citrinin (3) in red yeast rice on silica gel with n-hexane - acetone - 10 % acetic acid 60:40:1. Quantitative determination by absorbance measurement at 238 nm for (1) and (2) and fluorescence measurement at 313/> 400 nm for (3). The hRF values for (1) to (3) were 35, 23 and 7, respectively. Linearity was between 50 and 500 ng/zone for (1) and (2) and 5 and 50 ng/zone for (3). Intermediate precision was below 2 % (n=5). The LOD and LOQ were 10 and 50 ng/zone for (1) and (2) and 1 and 4 ng/zone for (3). Average recovery was 109.9 % for (1) to (3).

      Classification: 28b, 32d
      127 033
      High-performance thin-layer chromatography coupled with HPLC-DAD/HPLC-MS/MS for simultaneous determination of bisphenol A and nine brominated analogs in biological samples
      A. LIU (Liu Aifeng), Z. SHEN (Shen Zhaoshuang), L. YUAN (Yuan Li), M. XU (Xu Mengmeng), Z. ZHAO (Zhao Zongshan)*, X. LIANG (Liang Xiangfeng) (*CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China, zhaozs@qibebt.ac.cn)

      Anal. Bioanal. Chem. 411, 725-734 (2019). HPTLC of bisphenol A (1) and its nine brominated analogs, namely monobromobisphenol A (2), 2,2’-dibromobisphenol A (3), tribromobisphenol A (4), tetrabromobisphenol A (TBBPA) (5), TBBPA mono(methyl ether) (6), TBBPA mono(allyl ether) (7), TBBPA mono(2,3-dibromopropylether) (8), TBBPA bis(allyl ether) (9), TBBPA bis(2,3-dibromopropyl ether) (10) in chicken samples on silica gel with n-hexane - ethyl acetate - dichloromethane - acetic acid 25:5:5:1. Detection at UV 254 nm. Further analysis by high-performance liquid chromatography-diode array detector/triple quadrupole mass spectrometry. The hRF values for (1) to (10) were 30, 32, 33, 45, 58, 68, 69, 69, 91 and 86, respectively.  

       

      Classification: 7, 32d
      123 021
      Analysis of three main cannabinoids in seized marijuana by densitometric High-Performance Thin-Layer Chromatography
      B. DUFFAU*, K. ALCAMAN (*Instituto de Salud Pública de Chile, Santiago, Chile, bduffau@ispch.cl)

      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).

      Classification: 32d
      103 141
      Simple, accurate and rapid HPTLC method for analysis of theophylline in post-mortem blood and validation of the method
      P.U. SANGANALMATH, K.M. SUJATHA, S.M. BHARGAVI, V.G. NAYAK, B.M. MOHAN* (*Toxicology Division, Forensic Science Laboratory, Madivala, Bangalore 560068, Karnataka State, India; mohandfsl@yahoo.co.in)

      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.

      Classification: 32d
      56 174
      Determination of compounds EGYT 1855 and GYKI 51 159 in rat and mouse foods by TLC
      Z. SZABO, M. BIDLO-IGLOY

      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.

      Classification: 32d
      66 144
      Liquid chromatographic method with on-line UV spectrum identification and off-line thin-layer chromatographic confirmation for the detection of tranquillizers and carazolol in pig kidneys
      L.A. VAN GINKEL*, P.L.W.J. SCHWILLENS, M. OLLING, (*National Inst. Pub. Health & Environ. Protction, Lab. Residue Anal., P.O. Box 1, 3720 BA Bilthoven, The Netherlands)

      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.

      Classification: 32d
      73 148
      Identification of toxic herbs using TLC active constituent "Fingerprints"
      W.T. SMITH, (US Food and Drug Admin., Room 900 US Customhouse, Second and Chestnut Streets, Philadelphia, PA 19105, USA)

      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.

      Classification: 32d
      79 048
      DC-FTIR coupling for the identification of forensic samples
      K.A. KOVAR, (Pharm. Inst. der Univ. Tübingen, Auf der Morgenstelle 8, D-72076 Tübingen, Germany)

      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.

      Keywords:
      Classification: 4e, 32d