Results 21 to 30 of about 309,365 (304)
Thin‐Layer Chromatography [PDF]
AbstractTLC is used extensively in nucleic acid chemistry to monitor the progress of chemical reactions, to assay fractions collected from a larger chromatographic separation (e.g., column chromatography), and to determine optimal conditions prior to column chromatography.
openaire +3 more sources
Thin-layer chromatography of hydroxamic acids
The separation of very short-chain from longchain fatty acyl hydroxamates by thin-layer chromatography is described. The detection limit was 2 μg.
Eberhardg G. Trams
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Bioassay-guided isolation and identification of antimicrobial compounds from thyme essential oil by means of overpressured layer chromatography, bioautography and GC-MS [PDF]
A simple method is described for efficient isolation of compounds having an antibacterial effect. Two thyme (Thymus vulgaris) essential oils, obtained from the market, were chosen as prospective materials likely to feature several bioactive components ...
Andrea Böszörményi +23 more
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Thin-layer chromatography of bile acids*
Solvent systems suitable for thin-layer chromatographic separation of 40 different bile acids are described. The influence of substituents and chain length on the separation factors in different solvent systems has been examined.
Peter Eneroth
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Unidimensional thin-layer chromatography of phospholipids on boric acid-impregnated plates.
A unidimensional thin-layer chromatography system for the separation of phospholipids has been developed. The method employs precoated plates impregnated with boric acid and is capable of resolving eight phospholipid standards, including ...
J B Fine, H Sprecher
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Thin-Layer Chromatography of Phospholipids [PDF]
Thin-layer chromatography (TLC) is a technique that has been routinely used for the separation and identification of lipids. Here we describe an optimized protocol for the steady state labeling, separation, and quantification of yeast phospholipids using 1-D TLC.
Rania M, Deranieh +2 more
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STRUCTURE OF METHYLPHEOPHORBIDE-RCI [PDF]
he methanolic extract of the cyanobacterium (blue-green alga) Spirulina geitleri has been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides.
Budzikiewicz H. +27 more
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Aktivitas Antijamur Ekstrak Etanol Soxhletasi Dan Maserasi Daun Mimba (Azadirachta Indica) Terhadap Candida Albicans [PDF]
Research on antifungal activity of ethanolic extract of nimba leaves (Azadirachta indica) against Candida albicans were done using dilution method. Extracts were produced from two different extraction method i.e.
Dhiani, B. A. (Binar) +2 more
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Illegally additives determination by thin layer chromatography
To find out a simple TLC method, which could identify m-phenyenediamine and o-phenylenediamine in several colors of oxidation hair coloring products simultaneously. The colors includes black, yellow, brown and red. A small amount of the sample was placed
Liang Xin +3 more
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Spot applicator for thin-layer plates
A device that lowers a micropipet into position just above a thin-layer plate is described. Use of a self-filling pipet and foot-operated bellows allows one to apply many portions of a sample to the same point at high speed without damaging the adsorbent
Norman S. Radin
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