Method for preparing liquid chromatographic packing material

Details Method for preparing liquid chromatographic packing material Method for preparing liquid chromatographic packing material

1991-02-21

1992-07-28

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Organic

502407, 502158, B01J 3102

Patent

active

051341107

ABSTRACT:
Packing materials for use in liquid chromatographs are prepared by reacting silica gel or porous glass having silanol groups on the surface thereof with a chemical modifier to chemically attach the chemical modifier to silanol groups on the silica gel or porous glass, and reacting the chemically modified silica gel or porous glass with an end-capping agent in gas phase at 250.degree.-500.degree. C. to chemically attach the end-capping agent to the residual silanol groups on the silica gel or porous glass.

REFERENCES:
patent: 4376641 (1983-03-01), Nestrick et al.
patent: 4539399 (1985-09-01), Armstrong
Marshall et al., Liquid Chrom. Ab., #270, p. 59 (1986).

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