Results 121 to 130 of about 335,927 (147)
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Paper chromatography of dyes II. Paper chromatography of vat and sulphur dyes

Journal of Chromatography A, 1963
Abstract The paper chromatography of vat and sulphur dyes, using reducing solvents at 80°, has been carried out, the dyes being separated as their leuco compounds. In both cases ascending paper chromatography was applied. The relation between dye constitution and chromatographic behaviour has been examined.
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Paper chromatography of mercaptides

Journal of Chromatography A, 1962
Abstract The chromatographic separation and identification of several sulfhydryl compounds with iodoacetamide, p-mercuriphenylsulfonate, and p-mercuribenzoate is described. The possibility of applying this technique to structural studies of cysteine-containing proteins is indicated.
B.J. White, R.G. Wolfe
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Thin-layer and paper chromatography

Analytical Chemistry, 1986
This selective review covers the literature of thin-layer chromatography (TLC) and paper chromatography (PC) cited in Chemical Abstracts from December 5, 1983, through November 25, 1985, and Analytical Abstracts from November 1983 to November 1985.
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Paper Chromatography of Porphyrin Pigments

Scandinavian Journal of Clinical and Laboratory Investigation, 1953
1. A simple and time-sparing procedure for the paper chromatographic separation of porphyrin pigments has been described.2. 2–6 lutidine, which is completely miscible with water at temperatures up to 40o C, has been found to be easier to handle than the 2–4/2–5 lutidine used by Nicholas & Rimington (1949, 1951).3.
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Inverse Paper Chromatography

Separation Science and Technology, 1982
Abstract Available methods of examination do not provide absolute certainty that two samples of paper have the same origin. A new technique for testing paper, known as inverse paper chromatography (IPC), is based on using a strip of paper as the chromatographic sorbent medium on which a mixture of known probes is separated under standardized conditions.
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Electro chromatography on paper

Analytica Chimica Acta, 1953
Abstract The term 'electrochromatography' is used to denote the specific cases where chromatography and ionophoresis operate simultaneously. The electric field may be applied either in the direction of flow of the solvent or at right angles to it. The filter paper is previously treated with the relevant buffer solution and the developing solvent too ...
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Paper Chromatography of Uroerythrin

Scandinavian Journal of Clinical and Laboratory Investigation, 1954
Leena Bäckström   +2 more
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Paper chromatography of phenols

Journal of Chromatography A, 1961
Summary A convenient two-phase solvent system for descending paper chromatography of free, mono-phenolic compounds is described. Some relationships between RF value, acidity (pKa) and structure are discussed.
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The predawn of paper chromatography

Chromatographia, 2001
The activities of F.F. Runge, F. Goppelsroeder and R.E. Liesegang are outlined. The technique of capillary analysis is described and its shortcomings elaborated. Tswett's use of filter paper to imitate plant tissues is explained and finally, the considerations of Izmailov and Shraiber eventually leading to thin-layer chromatography are summarized.
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Paper Chromatography of Insulin

Nature, 1956
Harold Tarver   +5 more
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