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Oligomers paper chromatography

N-terminal amino acid (p. 973) oligomer (p. 993) oligopeptide (p. 959) paper chromatography (p. 969)... [Pg.995]

The work was continued on the paper chromatography modeling of UF oligomers [72]. In this series of experiments the limits of the molecular mechanics approach finally started to become apparent. While a good trend correspondence with experimental Rf values was again obtained within each of the two series of UF oligomers tested, correspondence was lost when one tried to compare the compounds within a series with the compounds of the other series. Thus, excellent correspondence existed within the homo-... [Pg.180]

Thin-layer and Paper Chromatography. — Malto-oligosaccharides (d.p. 2-8) are separable by paper chromatography as their 4-nitrophenylhydrazones, and the method has been used as for the assay of oligomers in the urine of patients... [Pg.212]

In this chapter, high-performance liquid chromatography of oligomers and (high) polymers (polymer HPLC) will be briefly presented. As mentioned in Section 16.1, there exist several monographs, chapter in books, and review papers on this subject, for example [1-33], Most of them contain numerous examples of the HPLC separation and molecular characterization of particular macromolecular substances. Therefore, this chapter discusses almost exclusively the general principles of polymer HPLC and only few selected examples of practical applications will be mentioned for illustration. [Pg.452]

The oligomer molecular weights were characterized by both UV-visible spectra (20, 21) and/or potentiometric titrations (22, 23). Details of the measurements are provided in these papers. The block copolymers also were characterized by intrinsic viscosity and in some cases by membrane osmometry and gel permeation chromatography. Additional characterization studies are continuing and will be reported later. A typical synthesis of a 5000-5000 polysulfone-S-polycarbonate-A copolymer via interfaciar polymerization is described below. [Pg.293]

The third category of supercritical fluid-polymer activity reported in the literature describes the use of SCF chromatography to separate oligomers. The classic paper in this field is by Jentoft and Gouw (1969), who reported their work on the supercritical fluid chromatographic separation of a monodis-perse polystyrene. Jentoft and Gouw use the quotation marks because, as they report later in the article, the polystyrene sample that they tested... [Pg.258]

It has been known for over 40 years that the renaturation of short guanine rich oligomers such as G3 is very slow. Absorbance and fluorescence spectroscopy were used to measure kinetics of association. In agreement with the seminal paper by Wyatt et who used size exclusion chromatography to study... [Pg.54]

Poly(esters) (general) Chromatography Chloroform/ethanol, ethyl Paper chromatogr., oligomers from 122... [Pg.1881]

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See also in sourсe #XX -- [ Pg.220 ]



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