Zobrazeno 11 - 20
of 33
pro vyhledávání: '"Ervin sz. Kováts"'
Publikováno v:
Synthesis. 1993:909-919
Retention in gas/liquid partition chromatography depends on the size and, to a lesser extent, on the form of the solvent used as stationary phase. How the measurement of interaction free enthalpies between a functional group and a solute free of size
Publikováno v:
ChemInform. 22
N-silyldimethylamines are efficient silylating agents for the chemical surface modification of hydroxylated silicon dioxide preparations. The synthesis of chloro(5-X-3,3-dimethylpentyl)-dimethylsilanes and their conversion to the corresponding (dimet
Autor:
Ervin sz. Kováts, R. Cloux
Publikováno v:
ChemInform. 23
Publikováno v:
Langmuir. 6:770-775
The type of silicon atoms at the surface of silicon dioxide samples, modified by dense grafts of three triorganylsiloxy substituents, was studied by 29 Si NMR. Signals were enhanced by magic angle spinning (MAS), cross polarization by the surface pro
Publikováno v:
Langmuir. 6:759-766
Les isothermes d'adsorption d'exces des melanges eau/acetonitrile sur un gel de silice modifie par greffage sont determines par chromatographie
Autor:
Ervin sz. Kováts
Publikováno v:
Chromatographia. 35:261-263
Publikováno v:
Talanta. 41(7)
A retention equation of general validity is adapted to ion exchange chromatography providing a self-consistent interpretation of retention of solutes and system peaks. Discussion is limited to eluent mixtures containing ions of invariant charge and t
Autor:
François Riedo, Ervin sz. Kováts
Publikováno v:
Theoretical Advancement in Chromatography and Related Separation Techniques ISBN: 9789401051897
In the mathematical treatment of chromatography with multi-component eluents by De Vault retention volumes are found to be eigenvalues of a matrix. Elements of this matrix are partial derivatives of partition isotherms which can be given in a simple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e479b6596635cddeeca556392c1c4a9
https://doi.org/10.1007/978-94-011-2686-1_7
https://doi.org/10.1007/978-94-011-2686-1_7
Publikováno v:
Helvetica Chimica Acta. 61:1912-1941
By means of contact angle measurements, it has been shown that compact alkyl-dimethyl-siloxy layers can be obtained on the surface of acid leached glass using the method previously developed for fume silica. Subsequently, a series of densest possible
Publikováno v:
Helvetica Chimica Acta. 59:717-727
The preparation of a series of alkyl- and (mono-, di- and poly-) oxaalkyl-dimethylsilanols is described. The stability of these compounds on storage is considerably increased by previous filtration through a silica gel column.