Coated capillary chromatographic column

Details Coated capillary chromatographic column Coated capillary chromatographic column

1981-12-14

1983-03-15

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55386, 65 301, 65 31, 2101982, B01D 1508

Patent

active

043766412

ABSTRACT:
In the production of a wall coated open tubular capillary chromatographic column, improved deactivation of the inner surface of a glass or fused silica capillary tube prior to coating with stationary phase is obtained by a multi-step process whereby siloxane polymer molecules are chemically bonded to the capillary inner surface. The process comprises multiple cycles of successive reactions with silicon tetrachloride and a diorganodichlorosilane vapor with intermediate hydrolyses and a final capping reaction with a triorganochlorosilane. The deactivated surface is adapted to coating with an apolar liquid stationary phase.

REFERENCES:
patent: 3514925 (1970-06-01), Bossart
patent: 3958073 (1976-05-01), Taevisan
patent: 4169790 (1979-10-01), Pretorius et al.
patent: 4242227 (1980-12-01), Nestrick et al.
patent: 4293415 (1981-10-01), Bente et al.
Milton L. Lee et al., J. of Chrom. (1980), pp. 235-312.
Bob W. Wright et al., J. of Chrom., 199 (1980), pp. 355-369.
M. Godefroot et al., "High Temperature Silylation of Glass Capillary Columns, J. of HRC & CC, Jul. 1980, pp. 337-344.
K. Grob et al., J. of HRC & CC, vol. 3, Apr. 1980, pp. 197-198, and vol. 2, Nov. 1979, pp. 677 & 678.

Affiliated with

Also associated with

Rating

Coated capillary chromatographic column does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coated capillary chromatographic column, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coated capillary chromatographic column will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1657513