Chromatographic separation columns with selectively modified act

Details Chromatographic separation columns with selectively modified act Chromatographic separation columns with selectively modified act

1974-08-26

1977-08-23

Adee, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

55386, 210198C, B01D 1508

Patent

active

040439054

ABSTRACT:
Selective monomolecular layers on siliceous surfaces used for the construction of high-resolution chromatographic columns are prepared by surface reactions with monohalogenated silanes, silazanes or silylamines, or monoalkoxy- or monoacetoxysilanes, and subsequent chemical modifications. Such monolayers form a basis for efficient films of chemically compatible stationary phases by introducing selective groups in gas-liquid chromatography and all forms of liquid chromatography, or for adsorbent modifications in gas-solid chromatography.

REFERENCES:
patent: 3116161 (1963-12-01), Purnell
patent: 3666530 (1972-05-01), Aue et al.
patent: 3808125 (1974-04-01), Good
patent: 3869409 (1973-03-01), Bebais et al.
patent: 3922392 (1975-11-01), Kohlschutter et al.
patent: 3954651 (1976-05-01), Donike

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