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Showing 1 to 20 of 162 for “"thin layer chromatography"”.
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Thin layer chromatography of platinum and palladium-ammine complexes
… and their coordination compounds. Specifically, Thin-Layer Chromatography of Platinum metal ions has been reported in one of the recent dissertations (1). The purpose of the present work was to carry out a systematic study of Thin-Layer Chromatography on the following complexes: Tetrammine …
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Thin layer chromatography-matrix assisted laser desorption ionisation-mass spectrometry of pharmaceutical compounds.
Thin-layer chromatography (TLC) is of great importance for the pharmaceutical industry as a simple, quick, and low cost analytical method. Considerable effort has been made over the past decades to combine the simplicity of TLC with the selectivity and sensitivity of mass spectrometry (MS) …
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Study of the aldopentoses and fucose in human urine by thin-layer chromatography
… analytical procedures based on one - dimensional thin-layer chromatography have been devised whereby it has become possible for the first time rapidly (3 h) to separate and measure at microgram levels, arabinose, ribose, xylose and fucose from the numerous other sugars present in urine from human …
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Characterisation of sandalwood essential oils using high performance thin-layer chromatography and high resolution gas chromatography mass spectrometry
… and oil yield have been observed both within and across Santalum species. Gas Chromatography-Mass Spectrometry (GC-MS) is a technique commonly used to identify and quantify sesquiterpene compounds in sandalwood essential oils. High Performance Thin-Layer Chromatography (HPTLC) has yet to …
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New bio-analytical separations utilizing chiral mobile phase additives in thin layer chromatography and chiral stationary phases in high performance liquid chromatography
… organic intermediates in high performance liquid chromatography (HPLC) and thin layer chromatography (TLC) were achieved. Two methods were employed for the direct liquid chromatographic resolution of chiral analytes: chiral stationary phases (CSPs) and chiral mobile phase additives (CMAs). Native …
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Determination of the presence of fusaproliferin and fusaproliferin deacetyl in 1996 and 1997 Iowa corn samples as detected by thin layer chromatography
<p>http://www.worldcat.org/oclc/40908212</p>
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Analysis of Blue Fountain Pen Ink by UV-Vis Spectroscopy, ATR-FTIR Spectroscopy, and Thin Layer Chromatography Enhanced with RGB Spot Evaluation to Construct a Database for Comparison and Identification.
… information. The methods used and evaluated were thin-layer chromatography (TLC) enhanced with RGB spot evaluation, UV-Vis spectroscopy, and ATR-FTIR spectroscopy. All three methods were used to analyze 89 fountain pen ink samples. All three methods were able to discriminate between the majority …
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Compatibility and stability of 8% amino acids solution in combination with electrolytes, vitamins and antibiotics
… analysis, i.e., U.V. spectroscopy and thin-layer chromatography, suggested, in fact, there may have been chemical interaction of Solu B Forte and MVI once admixed with the amino acids/dextrose solution. Yet, results of thin-layer chromatography did not appear to substantiate chemical …
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Comparison of selected radiopharmaceutical chromatographic quality control procedures
… reproducibility of two commercially available chromatography kits with Instant Thin Layer Chromatography-Silica Gel (ITLC-SG) and Whatman Chromatography Paper. The two commercial kits evaluated were the- MAC Klt- produced-General Radioisotopes Products, and the TECH Kit by Ackerman Nuclear.</p>
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Quantitative HPTLC
Advances in thin layer chromatography (TLC), including smaller more uniform particles, use of a scanning spectrophotometer (densitometer), and sample application devices, led to the development of the High Performance Thin Layer Chromatography (HPTLC) technique. HPTLC allows quantitative as well as …
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Reactions of centralite in aged propellants
… from the latter, by means of two-dimensional thin-layer chromatography and electronic absorption spectroscopy. A second purpose was to obtain material balances for the stabilizer in these propellants • A third objective was to devise a rapid, accurate and convenient method for determining the …
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Analytical methods for the study of membranes and peptide-membrane interactions
… standard MALDI target plate and directly onto thin layer chromatography plates after separation. The above techniques, together with other analytical methods including thin layer chromatography and dynamic light scattering, were applied to the study and identification of lipids modified by …
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Structural Characterization of the Transfer Ribonucleic Acids From Halobacterium Volcanii and Other Archaebacteria
… acidocaldarius), as analyzed by two-dimensional thin layer chromatography of the ('32)P-labelled nucleotides. Second, we describe the sequences of seventeen H. volcanii tRNAs (tentative for two) as determined by the oligonucleotide cataloging methods. These sequences have been largely confirmed …
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Experimental and Theoretical Studies of Supercritical Fluid Behavior
… of the mixed solids are determined using thin-layer chromatography. The feasibility of a partial isothermal separation of the two solids is investigated. The solubilities of the pure solids at three pressures, 1000, 2000 and 5000 psig and ideal solution theory as applied to mixtures of …
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Chemical investigation of Dicranum fulvum for anticancer activity
… by open column, flash column, gel filtration, thin layer chromatography, the chromatotron and crystallization. The isolated compounds were identified by comparisons of spectroscopic data with those of authentic samples and the matching of experimental and literature melting points and optical …
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Selectivity and soil behavior of chlorsulfuron
… clay. R<sub>f</sub> values calculated from soil thin-layer chromatography closely correlated with the mobility of chlorsulfuron leached with 16.8 cm of water over a 14-day period in hand-packed soil columns. In the soil thin-layer chromatography, chlorsulfuron mobility was positively and …
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The proteolytic activity of yoghurt and probiotic bacteria for the improved viability of probiotic bacteria in fermented milk products
… and tripeptidase activities were detected using thin-layer chromatography.
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