Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Organic acids paper chromatography

Since its initial application to the separation of amino acids, paper chromatography has been widely applied to the separation of many classes of compounds, including peptides, organic acids, inorganic ions, antibiotics, steroids, and amines.7 A number of monographs on paper chromatography are available.8... [Pg.305]

DC240 Schramm, R. Paper chromatography of organic acids in storage roots of some Umbelliferae. Acta Soc Bot Pol 1961 ... [Pg.222]

Solvent extraction by tributyl phosphate (TBP) (13, 96), dithizone (20, 71, 72), cupferron (89), thenoyl trifluoroacetone (TTA) (55), diiso-propyl ketone (26), mesityl oxide (92), tri-n-benzylamine and methyl di-n-octylamine (99), diisopropyl and diisobutyl carbinol (100) have all found some application on the trace scale. Acetylaeetone and methyl isobutyl ketone extract milligram amounts of polonium almost quantitatively from hydrochloric acid, but the stable polonium-organic compounds which are formed make it difficult to recover the polonium in a useful form from solutions in these ketones (7). Ion exchange (22, 115, 119) and paper chromatography (44, 87) have also been used for trace scale separations of polonium, but the effects of the intense alpha-radiation on organic com-... [Pg.202]

A very large number of papers report new research works on analyses of organic acids by thin layer chromatography, paper chromatography, high-performance liquid chromatography, and other analytical techniques. One of the most popular and widely used separation techniques for qualitative and quantitative analyses in the laboratory is thin layer chromatography. [Pg.1085]

Thurman, E.M. Malcolm, R.L. Concentration and fractionation of hydrophobic organic acid constituents from natural waters by liquid chromatography, U.S. Geological Survey Water Supply Paper 1817-G ... [Pg.192]

Some data from various authors on paper chromatography are shown in Table II and refer to identification of barbiturates in biological fluids49 50, in pharmaceuticals51, and organic acidic compounds52. [Pg.355]

Paper chromatography was another popular method of studying organic water constituents (Shapiro, 1957 Packham, 1964 Midwood and Felbeck, 1968) and also was of limited value in characterizing humic substances and colored organic acids, because the complex mixtures often produced broad diffuse bands and streaks. Some of the spot-tests and chromatograms of Shapiro (1957) demonstrated the presence of colorless acids and suggested the presence of phenols and enols. [Pg.184]

See other pages where Organic acids paper chromatography is mentioned: [Pg.297]    [Pg.47]    [Pg.53]    [Pg.115]    [Pg.282]    [Pg.410]    [Pg.152]    [Pg.175]    [Pg.279]    [Pg.68]    [Pg.195]    [Pg.38]    [Pg.25]    [Pg.26]    [Pg.118]    [Pg.344]    [Pg.9]    [Pg.1218]    [Pg.1119]    [Pg.479]    [Pg.29]    [Pg.619]    [Pg.185]    [Pg.177]    [Pg.233]    [Pg.499]    [Pg.221]    [Pg.204]    [Pg.216]    [Pg.53]    [Pg.100]    [Pg.169]    [Pg.293]    [Pg.238]    [Pg.338]    [Pg.1085]    [Pg.1089]    [Pg.37]    [Pg.283]    [Pg.12]    [Pg.293]   
See also in sourсe #XX -- [ Pg.479 ]



SEARCH



Acid paper

Chromatography acids

Chromatography paper

© 2024 chempedia.info