Liquid purification or separation – Processes – Chromatography
Patent
1979-03-02
1981-09-22
Adee, John
Liquid purification or separation
Processes
Chromatography
2101982, B01D 1508
Patent
active
042908922
ABSTRACT:
A weak anion exchange composition useful in polyfunctional compound chromatographic separations comprises an inert porous particle having a tetra-substituted silane material fixedly attached by covalent bonding to the surface thereof. A process for synthesizing the weak anion exchange composition is disclosed together with methods for separation of polyfunctional compounds and their isomers using a column packed with such weak anion exchange composition.
REFERENCES:
patent: 3664967 (1972-05-01), Stehl
patent: 3808125 (1974-04-01), Good
patent: 3984349 (1976-10-01), Meiller
patent: 4043905 (1977-08-01), Novotny et al.
patent: 4118316 (1978-10-01), Talley et al.
Introduction to Modern Liquid Chromatography by Snyder et al., John Wiley & Sons, N.Y., N.Y., pp. 287-299 and 318-320 relied on, 1974.
Adee John
Clarke Pauline A.
Cole Stanley Z.
Varian Associates Inc.
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