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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J. Planar Chromatogr. 26, 215-225 (2013). HPTLC of gatifloxacin and 8 related substances on silica gel with methanol - 1,2-dichloroethane - ammonia - acetonitrile 28:72:5:5. Quantitative determination by absorbance measurement at 366 nm. The hRf value for gatifloxacin was 42. Linearity was in the range of 20-1000 ng/zone. LOD and LOQ were 2.6 and 5.6 ng/zone. Intermediate/interday/intra-day precision was below 2 % (n=6). The method showed comparable results with a validated RP-HPLC mehod.
Chinese J. of Med. Guide 11 (1), 470-472 (2013). Shenshi Keli granule is a herbal TCM preparation for the treatment of urinary calculus. For quality control TLC on silica gel 1) for Dichondra repens Forst., with chloroform – acetone 19:1, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 °C for 5 min and viewing under UV 366 nm; 2) for Chicken gizzard’s stomach lining, with n-butanol – glacial acetic acid – water 7:1:1, detection by spraying with 0.3 % ninhydrin in n-butanol and heating at 105 °C until the zones are visible in daylight.
and Pterocephalus hookeri (Clarke) Hoeck by thin-layer chromatography) (Chinese). Chinese J. of Ethnopharm. 7 (7), 19-21 (2013). The roots of the grasses Nardostachys chinensis Batal. and Pterocephalus hookeri (Clarke) Hoeck are herbal Tibetan drug for treating epidemic disease, long fever and dysentery. During investigation of the medicinal plants growing in the Qinghai and Tibetan Plateau the following identification method for the two drugs was developed. TLC on silica gel 1) for Nardostachys chinensis Batal., a) with cyclohexane – ethyl acetate 5:1 and b) with petroleum ether (60-90 °C) – acetone 4:1, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 °C until the zones are visible in daylight. With mobile phase a) 3 zones were separated and with b) 6 zones; 2) for Pterocephalus hookeri (Clarke) Hoeck, a) with benzene – ethyl acetate 16:7 and b) with petroleum ether (60-90 °C) – acetone 3:2, all detection under UV 366 nm. With both mobile phases three blue fluorescent zones were detected.
Chinese J. of Henan Univ. (Med Sci.) 32 (2), 117-121 (2013). Shiming Granule is a herbal TCM preparation for invigorating blood circulation, improving liver and pulmonary functions and the eyesight. For quality control, TLC on silica gel 1) for Rhizoma et Radix Notopterygii, with n-hexane – ethyl acetate 7:3, detection by spraying with 5 % vanillin in sulfuric acid – ethanol 1:4 and heating until the zones are visible in daylight and under UV 366 nm; 2) for Bupleurum chinense, with ethyl acetate – methanol – water 8:2:1, detection by spraying with 2 % p-dimethylaminobenzaldehyde in 40 % sulfuric acid and heating at 60 °C, viewing under UV 366 nm; 3) for Rhizoma Atractylodis, with petroleum ether (60-90 °C) - ethyl acetate 20:1, detection by spraying with 5 % p-dimethylaminobenzaldehyde in 10 % sulfuric acid and heating until the zones are visible in daylight; 4) for Exocarpium Citri Rubrum, with ethyl acetate – methanol - water 100:17:10, detection by spraying with 3 % aluminiumchloride in ethanol, viewing under UV 366 nm; 5) for Radix Saposhnikoviae, with chloroform – methanol 4:1, detection under UV 254 nm; 6) for Salvia miltiorrhiza, with benzene – ethyl acetate 19:1, detection under UV 366 nm; 7) for Radix Paeoniae Rubra, with chloroform – methanol – formic acid 200:25:50:1, detection by spraying with 5 % vanillin in sulfuric acid – ethanol 1:4 and heating until the zones are visible in daylight; 8) for Herba Equiseti Hiemalis, with cyclohexane – ethyl acetate – formic acid 20:10:1, detection by spraying with 5 % aluminium chloride in ethanol and viewing under UV 366 nm; 9) for Cuscuta chinensis Lam., with ethyl acetate – butanone – formic acid – water 11:1:1:1, detection by spraying with 5 % aluminium chloride in ethanol and heating at 105 °C until the zones are visible, and viewing under UV 254 nm; 10) for Rehmannia glutinosa Libosch, with chloroform – methanol – ammonia 40:10:1, detection by spraying with 5 % vanillin in sulfuric acid – ethanol 1:4 and heating at 105 °C until the zones are visible in daylight; 11) for Rhizoma Atractylodis Macrocephalae, with cyclohexane – ethyl acetate 7:3, detection by spraying with 5 % p-dimethylaminobenzaldehyde in sulfuric acid – ethanol 1:10 and heating at 105 °C until the zones arevisible in daylight; 12) for Radix Glycyrrhizae, with ethyl acetate – formic acid – water 15:3:2, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 °C, viewing under UV 366 nm; 13) for Radix Achyranthis Bidentatae, with chloroform – methanol 30:1, detection by spraying with 5 % phosphomolybdic acid in n-propanol and heating at 110 °C until the zones are visible in daylight.
J. Chromatogr. A 1289, 105-118 (2013). HPTLC of 11 anthocyanes named cyanidin (1), delphinidin (2), malvidin (3), peonidin (4), pelargonidin (5), cyanidin-3-glucoside (6), delphinidin-3-glucoside (7), malvidin-3-glucoside (8), peonidin-3-glucoside (9), pelargonidin-3-glucoside (10) and malvidin-3,5-diglucoside (11) in pomace, feed, juice and wine on silica gel with ethyl acetate - toluene - formic acid - water 50:15:4:6 for the anthocyanidins (1) to (5) and ethyl acetate - 2-butanone - formic acid - water 35:15:6:4 for the anthocyanins (6) to (11). Quantitative determination by absorbance measurement using a multi-wavelength scan at 505 nm for (10), 510 nm for (5), 520 nm for (4) and (9), 530 nm for (1), (3), (6), (8) and (11) and 555 nm for (7). Detection was compared by dipping into a DPPH radical reagent solution (0.5 mM methanolic solution of the DPPH) and into Aliivibrio fischeri bioassay suspension. Linearity was in the range of 180-540 ng/zone for (1), 47-141 ng/zone for (2), 147-441 ng/zone for (3), 24-89 ng/zone for (4), 32-95 ng/zone for (5), 71-343 ng/zone for (6), 63-304 ng/zone for (7), 40-191 ng/zone for (8), 27-131 ng/zone for (9), 16-76 ng/zone for (10) and 45-219 ng/zone for (11). The intermediate precision over several months was below 6.7 % (n=3). The LODs of the anthocyanidins were much better compared to those for anthocyanins. The LOQs for (1) to (11) were below 90 ng/zone, most even below 30 ng/zone and for (9) and (10), the LOQ were even below 7 ng/zone. Radical scavenging as well as bioactivity properties were important complementary detection methods.
J. Liq. Chromatogr. Relat. Technol. 37, 2420-2432 (2014). HPTLC of lamivudine (1) and zidovudine (2) on silica gel with ethyl acetate – hexane – methanol – acetic acid 40:40:20:1. Quantitative determination by absorbance measurement at 278 nm. The hRF values for (1) and (2) were 25 and 73, respectively. Linearity was in the range of 100-600 ng/zone for (1) and 200-1200 ng/zone for (2). The intermediate/interday/intra-day precisions were below 2 % (n=3). The LODs and LOQs were 5 and 15 ng/zone for (1) and 10 and 32 ng/zone for (2), respectively. Recovery was between 95 and 105 %.
Chinese J. of Inform. on TCM 20 (3), 67-69 (2013). Zishen Jiaonang capsule is a herbal TCM effective in tonifying the liver and kidney, and is prescribed for premature ovarian failure, acute and chronic hepatitis, mastitis, sterility, etc. For quality control, HPTLC of the extracts of the preparation on silica gel 1) for Paeonia lactiflora Pall. and the standard paeoniflorin, with chloroform – methanol – water 14:6:1, detection by spraying with 5 % vanillin in sulfuric acid – ethanol 1:4 and heating at 105 °C until the zones are visible in daylight; 2) for Ziziphus jujuba Mill. Var. spinosa, with water-saturated n-butanol, detection under UV 366 nm; 3) for Lilium brownii var. viridulum with petroleum ether (60-90 °C) – ethyl acetate – formic acid 15:5:1, detection by spraying with 10 % phosphomolybdic acid hydrate in ethanol and heating mildly until the zones are visible in daylight; 4) for Caulis polygoni multiflori and the standard emodin, with n-hexane – ethyl acetate – formic acid 60:20:1, detection under UV 366 nm. Quantification of paeoniflorin by HPLC.
J. Planar Chromatogr. 27, 33-37 (2014). HPTLC of alpha-phellandrene (1) and beta-pinene (2) in Anethum graveolens L. on silica gel with ether - dichloromethane 3:7. Detection by spraying with vanillin reagent (15 g vanillin in 250 mL ethanol and 2.5 mL concentrated sulfuric acid), followed by heating at 120 °C. Quantitative determination by absorbance measurement at 600 nm. Linearity was in the range of 40-270 µg/zone for (1) and 100-360 µg/zone for (2). LOD and LOQ were 6.6 and 65.8 µg/zone for (1) and 12.9 and 88.7 µg/zone for (2), respectively. Recoveries were in the range of 95.2-98.8 % for (1) and 97.1-101.4 % for (2). Intermediate/interday/intra-day precision was below 4 % (n=6).