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. 35, 103-116 (2022). HPTLC of Daqinjiao standard decoction containing the following herbs: Gentianae Macrophyllae Radix (1), Paeoniae Radix Alba (2), Glycyrrhizae Radix et Rhizoma (3), Notopterygii Rhizoma et Radix (4), Saposhnikoviae Radix (5), Angelicae Pubescentis Radix (6), Angelicae Sinensis Radix and Chuanxiong Rhizoma (7), Scutellariae Radix (8) on silica gel with ethyl acetate - methanol - water 15:2:1 for (1) to (5), n-hexane - ethyl acetate 7:3 for (6) and (7) and toluene - ethyl acetate - methanol - formic acid 15:5:1.5:3 for (8). Detection by spraying with 5 % solution of vanillin in sulfuric acid, followed by heating at 105 °C for 5 min for (1) to (3), (5) and (6) and spraying with 2 % iron trichloride for (8). Qualitative identification under UV light at 254 and 366 nm. Reference standards were gentiopicroside for (1), paeoniflorin for (2), liquiritin for (3), nodakenin for (4), 5-O-methylvisammioside for (5), osthole for (6), ligustilide for (7) and baicalein and wogonin for (8). The hRF values for reference standards for (1) to (8) were 40, 35, 46, 28, 24, 37, 65 and 56, respectively.
J. Planar Chromatogr. 35, 103-116 (2022). HPTLC of Daqinjiao standard decoction containing the following herbs: Gentianae Macrophyllae Radix (1), Paeoniae Radix Alba (2), Glycyrrhizae Radix et Rhizoma (3), Notopterygii Rhizoma et Radix (4), Saposhnikoviae Radix (5), Angelicae Pubescentis Radix (6), Angelicae Sinensis Radix and Chuanxiong Rhizoma (7), Scutellariae Radix (8) on silica gel with ethyl acetate - methanol - water 15:2:1 for (1) to (5), n-hexane - ethyl acetate 7:3 for (6) and (7) and toluene - ethyl acetate - methanol - formic acid 15:5:1.5:3 for (8). Detection by spraying with 5 % solution of vanillin in sulfuric acid, followed by heating at 105 °C for 5 min for (1) to (3), (5) and (6) and spraying with 2 % iron trichloride for (8). Qualitative identification under UV light at 254 and 366 nm. Reference standards were gentiopicroside for (1), paeoniflorin for (2), liquiritin for (3), nodakenin for (4), 5-O-methylvisammioside for (5), osthole for (6), ligustilide for (7) and baicalein and wogonin for (8). The hRF values for reference standards for (1) to (8) were 40, 35, 46, 28, 24, 37, 65 and 56, respectively.
J. Planar Chromatogr. 35, 117-125 (2022). HPTLC of gallic acid (1), piperine (2),
resveratrol (3), and quercetin (4) in Ayurvedic formulation Drakshavaleha on silica gel with ethyl acetate - toluene - glacial acetic acid - formic acid 10:10:2:1. Quantitative determination by absorbance measurement at 254 and 366 nm. The hRF values for (1) to (4) were 45, 72, 68 and 58, respectively.
J. Planar Chromatogr. 35, 61-71 (2022). HPTLC of empagliflozin (1) in the presence of metformin HCl (2) on silica gel with toluene - methanol - ammonia - glacial acetic acid 72:26:1:1. Quantitative determination by absorbance measurement at 230 nm. The hRF values for (1) and (2) were 15 and 48, respectively. Linearity was between 11 and 112 ng/zone for (1) and 85 and 850 ng/zone for (2). Interday and intra-day precisions were below 2 % (n=3). The LOD and LOQ were 0.6 and 1,7 ng/zone for (1) and 5 and 15 ng/zone for (2), respectively. Recovery was found to be in the range of 99.4-101.0 % for (1) and 100.3-101.4 % for (2). Degradation products were characterized by liquid chromatography coupled with electrospray ionization‒quadrupole-time of flight‒tandem mass spectrometry (LC‒ESI‒QTOF‒MS/MS).
J. Planar Chromatogr. 35, 35-41 (2022). HPTLC of quercetin (1) and gallic acid (2) in the leaves of Annona reticulata on silica gel with toluene - ethyl acetate - formic acid 45:50:8. Quantitative determination by absorbance measurement at 367 nm. The hRF values for (1) and (2) were 71 and 63, respectively. Linearity was between 200 and 1000 ng/zone for (1) and 200 and 1200 ng/zone for (2). Interday and intra-day precisions were below 2 % (n=5). The LOD and LOQ were 21 and 65 ng/zone for (1) and 15 and 55 ng/zone for (2), respectively. Recovery was between 98.0 and 99.1 % for (1) and 99.3 and 100.3 % for (2).
J. Planar Chromatogr. 34, 559-560 (2021). HPTLC fingerprint of Ginkgo biloba finished products on silica gel with n-butyl acetate - methanol - water - formic acid 15:4:2:2. Detection by dipping into anisaldehyde reagent (1 mL of p-anisaldehyde in 200 mL of a mixture of methanol, acetic acid and sulphuric acid 17:2:1). Qualitative identification under UV light at 254 nm and 366 nm.
J. Planar Chromatogr. 34, 531-542 (2021). HPTLC of betulinic acid (1), β‑sitosterol (2) and lupeol (3) in fruits, leaves, root and stem bark of Dillenia pentagyna on silica gel with petroleum ether - ethyl acetate - acetonitrile 82:18:1. Detection by dipping into anisaldehyde sulfuric acid reagent, followed by heating at 105 °C for 5 min. Quantitative determination by absorbance measurement at 580 nm. The hRF values for (1) to (3) were 17, 23 and 36. Linearity was between 120 and 440 ng/zone for (1), 200 and 1000 ng/zone for (2) and 60 and 220 ng/zone for (3). Interday and intra-day precisions were below 2 % (n=5). The LOD and LOQ were 91 and 276 ng/zone for (1), 304 and 921 ng/zone for (2) and 41 and 125 ng/zone for (3), respectively. Average recovery was 100.7 % for (1), 101.7 % for (2) and 102.0 % for (3).
J. Planar Chromatogr. 34, 493-502 (2021). HPTLC of quercetin (1), beta-sitosterol (2), piperine (3), gallic acid (4) and resveratrol (5) in Krishnadi Churna on silica gel with toluene - chloroform - methanol 4:4:1 for (3), toluene - ethyl acetate - ethanol - methanol - formic acid 20:15:10:5:1 for (4), toluene - ethyl acetate - methanol - formic acid 50:40:10:2 for (1) and toluene - ethyl acetate - methanol - formic acid 60:30:10:3 for (2) and (5). Quantitative determination by absorbance measurement at 366 nm. The hRF values for (1) to (5) were 52 for (1), 64 for (2), 77 for (3), 61 for (4) and 45 for (5). Linearity was between 2 and 14 µg/mL for (1), (2) and (5), 1 and 18 µg/mL for (3) and 3 and 15 µg/mL for (4). The LOD and LOQ were 3 and 8 µg/zone for (1), 2 and 6 µg/zone for (2), 5 and 16 ng/zone for (3), 8 and 3 µg/zone for (4) and 8 and 3 µg/zone for (5). Average recovery was 99.2 % for (1), 98.4 % for (2), 98.6 % for (3), 98.9 % for (4) and 99.1 % for (5).