Author
Corazon R. Hastings
Bio: Corazon R. Hastings is an academic researcher from University of Missouri. The author has contributed to research in topics: Silicone & Polymer. The author has an hindex of 13, co-authored 14 publications receiving 599 citations.
Papers
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TL;DR: Carbowax 20M was coated on Chromosorb W, heat-treated at 280°, and exhaustively extracted as mentioned in this paper, with the remaining support performed chromatographically in a manner similar to highly efficient, well deactivated gas.
169 citations
TL;DR: Silicones can be synthesized from a variety of pure or mixed monomers on and chemically bonded to silicicic surfaces as discussed by the authors, typically to chromatographic supports The resulting materials are non-extractable, thermally stable coatings which perform well in GLC and can be used for some of the more demanding types of analysis
121 citations
TL;DR: Citric and nitrilotriacetic acids can be determined at the 1–10,000 p.p.b. 1 levels in aqueous systems ranging from tap water to sewage effluents by use of anion-exchange clean-up, derivatization with butanol—HCl and gas chromatography.
47 citations
TL;DR: In this article, a multistage process was described to produce silicones polymerized on, and chemically bonded to, chromatographic supports, and the resulting phases were characterized by gas liquid chromatography in terms of column bleed, solute retention and resolution; by liquid phase extractability, by thermogravimetric analysis, and C, H analysis.
43 citations
39 citations
Cited by
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TL;DR: The study indicated that electrostatic interactions play an important role in the adsorption of dyes onto diatomite and a model of the advertisersorption mechanism of methylene blue onto di Atomite is proposed.
609 citations
TL;DR: In this paper, the chromatographic activity of the silica surface is discussed on the basis of TMS-phases with various surface coverages, and it is observed that logarithmic retention data for homologous series and different RPphases-partially taken from the literature-form a set of straight lines with a common intersection point.
Abstract: Four different monomeric chemically bonded phases suitable for reversed-phase liquid chromatography have been prepared. Duplicate preparations, elemental analysis, post-treatment with TMS and chromatographic properties all indicate that maximum coverage has been obtained. The chromatographic activity of the silica surface is discussed on the basis of TMS-phases with various surface coverages. It is observed that logarithmic retention data for homologous series and different RP-phases-partially taken from the literature—form a set of straight lines with a common intersection point.
278 citations
267 citations
TL;DR: Organic substances are liberated from potable water and transferred to a very small amount of charcoal in a hermetically closed circuit system, in which the carrier may be an inert gas or water vapour, yielding complementary results.
249 citations
TL;DR: In this article, the retentions of polar and non-polar samples were found to be influenced by the eluent, the length of the organic bristle, the carbon content of the RP, the pore size distribution of the silica support and the total porosity of the stationary phase.
231 citations