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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Registered users can create a tailor made PDF of selected articles throughout CCBS search – simply use the cart icon on the right hand of each abstract to create your individual selection of abstracts. You can export your saved items to PDF by clicking the download icon.
J. AOAC Int. 77, 1435-1438 (1994). TLC of corticosteroids (betamethasone dipropionate, dexamethasone, hydrocortisone, testosterone) on silica with chloroform - ethyl acetate 2:1 for corticosteroid esters and chloroform ethyl acetate 1:1 for free corticosteroids. Detection with tetrazolium blue reagent. Quantification by densitometry at 240 nm before spraying with the chromogenic reagent, or at 520 nm after spraying.
J. Liquid Chrom. 9, 3461-3457 (1986). Isolation of dexamethasone sodium phosphate and betamethasone sodium phosphate after alkaline phosphatase reaction. TLC on silica with chloroform - methanol - water 180:15:1 or dichloromethane - ether - methanol -water 77:15:8:1; location under short wave UV. Quantification after extraction with ethanol by absorbance at 240 nm. Average recovery 100.56 resp. 100.46 %. Assay of unesterified steroids and identification of preservatives (e.g. methyl or propyl parabenzoates, phenol, benzylalcohol) may be carried out by the same method.
(Hungarian). Acta Pharmaceutica Hungarica 62, 82-87 (1992). TLC of intermediates of pipecuronium bromide on silica with benzene - acetone 8:2, cyclohexane - ethyl acetate 9:1, chloroform - methanol 1:1 or 6:4, benzene - ethyl acetate 7:3 or 95:5, hexane - acetone 85:15. methanol - conc. NH3 - (NH4)2CO3 2 mL + 5 mL + 0.35 g; hexane - methanol - conc. NH3 - (NH4)2CO3 2 mL + 18 mL + 2 mL + 0.14 g; acetonitrile - methanol - A. solvent - B. solvent 77,2:51.4:10:1; A. solvent = conc. NH3 - (NH4)2CO3 100 mL + 7 g, B. solvent = ammoniumchloride - water - conc. NH3 9 g + 2 mL + 50 mL; chloroform - methanol - NaI 50 mL + 50 mL + 1g. Detection with sulfuric acid and Dragendorff reagent.
J. Liq. Chromatogr. Relat. Technol. 31, 555-566 (2008). Five new derivatization reagents (gentian violet, methylene violet, methylene blue, malachite green, and Janus blue) were used to detect estradiol on aluminium oxide. Barton’s reagent, rhodamine B, and sulfuric acid were used as the comparative derivatization reagents. Limit of detection, detection index, modified broadening index, modified contrast index, and linearity range were determined for estradiol after derivatization with these reagents. Quantitative determination by absorbance measurement between 200 and 600 nm.
behavior of some steroids by OPLC. Proc. Intern. Symposium on TLC with special Emphasis on OPLC, Szeged, 90 (1984). OPLC (OPTLC) of progesterone, cholesterol, corticosterone, aldosterone, cortisol, cortisone on silica with a) petrol ether - ethyl-acetate 6:4, b) chloroform - ethyl acetate - ethanol 90:10:1, c) chloroform - phenol 9:1. Detection with 50 % phosphoric acid and heating at 105 °C for 15 minutes.
?-amyrin and ?-sitosterol by applying a validated high-performance thin-layer chromatography method in the aerial parts of Tinospora cordifolia and Calotropis gigantia
J. Planar Chromatogr. 30, 175-180 (2017). HPTLC of β-amyrin (1) and β-sitosterol (2) in the aerial parts of Tinospora cordifolia and Calotropis gigantia on silica gel with n-hexane – ethyl acetate 3:1. Detection by spraying with p-anisaldehyde reagent. Quantitative determination by absorbance measurement at 530 nm. The hRF values for (1) and (2) were 39 and 26, respectively. Linearity was between 100 and 1400 ng/zone for (1) and (2). LOD and LOQ were 18 and 55 ng/zone for (1) and 30 and 91 ng/zone for (2). The intermediate precision was <2 % (n=6). Recovery rate ranged from 98.4 to 99.3 % for (1) and 98.3 to 99.9 % for (2).
Lipids 17, 477-482 (1982). Preparative TLC of microbially produced metabolites of lithocholic acid and lithocholic acid-3 alpha-sulfate on silica with dichloromethane-methanol 95:5. Detection by spraying with anisaldehyde, followed by heating. The following metabolites were isolated: isolithocholic acid, 5 beta-cholanic acid, 3-keto-lithocholic acid, 5 alpha -cholestone and delta 3-cholenic acid.