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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Planta Med. 75, 12-17 (2009). HPTLC of swertiamarin and the ethyl acetate extract of Enicostemma axillare on silica gel with ethyl acetate - butanol 1:1 in a twin trough chamber. Quantitative determination by densitometric absorbance measurement at 254 nm.
International Journal of PharmTech Research 2(2), 1427-1430 (2010). Ashokarista formulations contain ashoka (Saraca indica) as the main ingredient. Its markers are catechin, (+)catechole, and (-)epicatechin. TLC of extracts and (+)catechin on silica gel with toluene - ethyl acetate - formic acid - methanol 15:15:4:0.1. Quantitative determination by densitometry in absorbance mode at 278 nm. For identification of the stem-bark of Saraca indica the fingerprint is evaluated after detection with anisaldehyde-sulphuric acid. The hRf value of (+)catechin was 54.
International Journal of PharmTech Research 3(2), 1174-1178 (2011). TLC of lamotrigine on silica gel with ethyl acetate - chloroform - water 18:6:5. The hRf value was 40. Quantitative determination at 240 nm. The linearity was in the range of 98-590 ng/band with an average recovery of 100.2 %. LOD and LOQ were 44 and 122 ng/zone.
Indian drugs 48 (02), 43-47 (2011). TLC of curcumin and 3-acetyl-11-keto-beta-boswellic acid on silica gel with chloroform - methanol 37:3 for curcumin and n-hexane - ethyl acetate 1:1 for boswellic acid derivatives. The hRf value of 3-acetyl-11-keto-beta-boswellic acid was 24 and of curcumin 59. Densitometric evaluation at 430 nm for curcumin and 254 nm for the acid. The method was linear in the range of 100-500 ng/band for curcumin and 1500-4000 ng/band for 3-acetyl-11-keto-beta-boswellic acid.
J. Liq. Chromatogr. Relat. Technol. 34, 902-919 (2011). HPTLC of metformin (1) in combination A with glicazide (2) and in combination B with glimepriride (3), in pharmaceutical formulations on silica gel with ammonium sulfate (0.25 %) - methanol - ethyl acetate 4:1:1. Quantitative determination by absorbance measurement at 235 nm (combination A) and 285 nm (combination B). The hRf values for (1) and (2) were 39 and 66, and for (1) and (3) 32 and 69, respectively. Linearity was 5-25 µg/zone for (1) and 0.8-40 µg/zone for (2) in combination A, and 150-250 µg/zone for (1) and 0.3-0.5 µg/zone for (3) in combination B. In A, LOD and LOQ were found to be 61 and 190 ng/zone for (1), and 40 and 150 ng/zone for (2), respectively. In B, LOD and LOQ were 95 and 205 ng/zone for (1) and 30 and 70 ng/zone for (3). Values for repeatability and intermediate precision studies were below 2 %. Recoveries (by standard addition) ranged between 98.9-100.3 %.
Journal of Pharmacy Research 4(5), 1353-1355 (2011). HPTLC of methanolic extracts of Aegle marmelos fruit pulp on silica gel with toluene - ethyl acetate - glacial acetic acid 70:30:1. Densitometric quantification of marmelosin at 310 nm. The method was linear in the range of 50-350 ng/band. The method was used to determine the marmelosin content of pulp, unripe pulp, seeds, leaves, rind, outer stain and inner stain.
The case of determination of rosmarinic acid in different matrices. J. Chromatogr. A 1220, 156-161 (2012). Description of a new method for determination of rosmarinic acid in different matrices by HPTLC on silica gel with toluene – ethyl formate – formic acid 6:4:1. Quantification by densitometry in absorbance mode at 330 nm. The influence of the main HPTLC operative parameters was figured out in view of a more stringent validation process. Together with the fundamental HPTLC instrumentation an automatic developing chamber is mandatory as it allows for control of the relative humidity and the saturation conditions and thus assures reproducibility. Several commercial preparations containing rosmarinic acid in different amounts were tested and rosmarinic acid in the range of 132-660 ng/band was found. The %RSD of repeatability and intermediate precision did not exceed 2.
J. AOAC Int. 96, 24-26 (2013). HPTLC of stevioside (1) and rebaudioside-A (2) in the leaves of Stevia rebaudiana on silica gel with ethyl acetate - ethanol - acetone - water 5:1:2:2. Detection by spraying with anisaldehyde - sulfuric acid reagent, followed by heating at 110 °C for 10-15 min. Quantitative determination by absorbance measurement at 580 nm. The hRf values of (1) and (2) were 34 and 28, respectively. Linearity was 1-7 µg/zone for both. LOD and LOQ were 127 and 387 ng/zone for (1) and 393 and 1191 ng/zone for (2). The interday and intra-day precisions were below 1.2 % (n=3). Recovery (by standard addition) ranged 89.6-93.9 % for (1) and 86.7-90.6 % for (2).