CHEM 344 Thin Layer Chromatography
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چکیده
Thin layer chromatography (TLC) is a useful technique for the separation and identification of compounds in mixtures. TLC is used routinely to follow the progress of reactions by monitoring the consumption of starting materials and the appearance of products. Commercial applications of TLC include the analysis of urine for evidence of "doping", the analysis of drugs to establish purity or identity of the components, and analysis of foods to determine the presence of contaminants such as pesticides.
منابع مشابه
electrokinetic chromatography, thin-layer chromatography, high-performance thin-layer chromatography, high-performance liquid chromatography (HPLC) with atmospheric pressure chemical ionization–mass spectrometry, reversed-phase HPLC with ultraviolet detection and gas chromatography with negative-ion chemical ionization–mass spectro-
Chem. Abstr. Serv. Reg. No.: 60-56-0 Deleted CAS Reg. Nos: 4708-61-6; 85916-84-3 Chem. Abstr. Name: 1,3-Dihydro-1-methyl-2H-imidazole-2-thione IUPAC Systematic Names: 1-Methylimidazole-2-thiol; 1-methyl-4-imidazoline-2thione Synonyms: 2-Mercapto-1-methyl-1H-imidazole; 2-mercapto-1-methylimidazole; mercazolylum; 1-methyl-1,3-dihydroimidazole-2-thione; N-methylimidazolethiol; 1-methyl-2-imidazole...
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A unidimensional Thin Layer Chromatography system for the separation of salicylic acid and its derivatives (sulfosalicylic acid and Aspirin) has been developed. The separation was successfully using a solvent system of chloroform-methanol-water-ammonium hydroxide 120:75:6:2 (V/V) as mobile phase on TLC plates impregnated with boric acid. The method is based on different behavior of investigated...
متن کاملThe study of the frequency of dyes used in food products delivered at Fasa restaurants using Thin Layer Chromatography and spectrophotometric methods in 1397
Background & Objective: Today, in order to maintain or improve the appearance, composition, flavor and nutritional value for food, compounds called additive are added, that they lead to complications in the human body, which the colors are only one of these substances. The aim of this study was to determine the frequency of consuming colors in saffron foods in Fasa in 1397 by thin layer chromat...
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J Med 1996;334:759–62. 9. Boushey CJ, Beresford SA, Omenn GS, Motulsky AG. A quantitative assessment of plasma homocysteine as a risk factor for vascular disease. Probable benefits of increasing folic acid intakes. JAMA 1995;274:1049–57. 10. Ubbink JB, Vermaak WJ, van der Merwe A, Becker PJ. The effect of blood sample aging and food consumption on plasma total homocysteine levels. Clin Chim Act...
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It has been proposed that the antiestrogen tamoxifen induces liver tumors in rats and genotoxic effects in vitro through metabolic activation involving, initially, alpha-hydroxylation of the ethyl group. To test this hypothesis, the extent of DNA adduct formation in primary rat hepatocytes treated with tamoxifen and alpha-hydroxytamoxifen was investigated. Hepatocytes from female Fischer F-344 ...
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