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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J. Chromatogr. A 1218 (19), 2785-2792 (2011). Examination of the applicability of TLC for the analysis of biodiesel conversion. Biodiesel is a complex mixture which complicates the analytical separation and requires a large set of data for understanding reaction kinetics. A flame ionization detector (FID) and a modified TLC staining procedure were evaluated in comparison with the well-established but time-consuming and expensive GC and HPLC methods. The TLC staining method is suited for quantitative analysis due to no background. Demonstration by using several experimental samples produced by enzymatic conversion of rapeseed oil to biodiesel. It was found that the first reaction step (6 h) resulted in 85–95 % conversion and the second step (after removal of glycerol and water) increased the yield to 97–98 %. All components of the mixtures were separated and quantified. Relation of the biodiesel contents measured by TLC and GC gave the values of 1.03 ± 0.07 (TLC-staining) and 0.95 ± 0.04 (TLC–FID), which indicated the applicability of the TLC methods.
Deut. Lebensm. Rundschau 91, 205-208 (1995). HPTLC of optical brighteners (Leucopur, Azur 4, Azur 5, Hostalux ABC, Uvitex, Eastobrite) on RP-18 with acetonitrile - dichloromethane 19:1, acetonitrile - water 19:1 and methanol - water 97:3. The organic mixture showed better separation than the aqueous phases. Detection under UV.
J. Planar Chromatogr. 26, 96-101 (2013). HPTLC of cetylpyridinium chloride (1), sodium dodecyl sulfate (2) and Triton X-100 (3) on silica gel with methanol - water 1:1. Quantitative determination by absorbance measurement at 254 nm. The hRf values for (1) to (3) were 6, 74 and 91, respectively. Linearity was in the range of 170-1740 µg/zone for (1), 250-1980 µg/zone for (2) and 160-1640 µg/zone for (3). LOQ was 75 ng/zone for (1), 90 ng/zone (2) and 65 ng/zone for (3).
J. China Assoc. Inst. Anal. 6, 19-22 (1987) (Fenxi Ceshi Tongbao). TLC on silica with chloroform - methanol - acetic acid - water 80:10:8:2. Detection by exposing to iodine vapour. Quantification by densitometry at 520 nm.
J. Planar Chromatogr. 7, 22-24 (1994). TLC of surfactants (anionic, cationic, non-ionic, amphoteric) by four-fold development on silica with 1. methanol - 2 N NH3 3:1, 2. THF - acetone 1:9, 3. chloroform - methanol 9:1, 4. chloroform - methanol - 0.1 N sulfuric acid 80:19:1. Visualization by dipping in Dragendorff's reagent. The reliability of the method has been tested for 16 surfactants, for which the Rfs are reported.
J. Planar Chromatogr. 23, 250-254 (2010). TLC of 30 food additives (aldehydes, organic acids, esters and alcohols, and various sodium salts) on titanium(IV)silicate ion-exchanger with 10 different mobile phases: e. g. methanol, heptane - diethylether 4:1, aqueous ammonia - methanol - ethyl acetate 1:3:6, methanol - aqueous ammonia 9:1, methanol - ethanol 17:3, 0.5 M ammonium sulfate solution, 0.25 M, 0.5 M and 0.1 M potassium bromide solution, and phosphate buffer pH 2.5 in a twin-trough chamber without chamber saturation. Detection by spraying with 1 % iron chloride solution, 0.5 % potassium permanganate and 3 % barium chloride solution 1:1, 1 % ninhydrin in ethanol, 2 % phosphomolybdic acid in ethanol, and 5 % potassium dichromate in concentrated sulfuric acid. The study shows that the quality of separation depends to a large extent on the mobile phase, and selectivity is achieved by varying the composition of the mobile phase.
Thin-layer chromatographic procedure for the identification of preservatives in cosmetic products. J. Chromatogr. 410, 395-411 (1987). TLC of 88 preservatives on silica and alumina with ethyl acetate - diisopropyl ether - 96% ethanol - 25% NH3 55:30:10:2. Detection under UV 254 nm and by spraying with six reagents. Investigation of the retention behavior and the detectability of the preservatives, of which 74 were characterized. Detection limit, in the concentration range of 0.1%.
Z. Lebensm. Unters. Forsch. 206, 99-102 (1998). TLC of phenolic compounds on silica gel with a mixture of chloroform - methanol - water 63:35:10. Visualization by spraying with a solution of ferric chloride and potassium ferricyanide. Compounds with antioxidative activity were visualized after spraying with a solution of b-carotene and linoleic acid and observing the delay in bleaching of the b-carotene.