FUSED-SILICA MICROBORE PACKED CHROMATOGRAPHY COLUMN WITH CHEMICALLY MODIFIED COLUMN WALL - Patent 0309489

(19)

(11)

EP 0 309 489 A1

(12)

(43)	Date of publication:
	05.04.1989 Bulletin 1989/14

(21)	Application number: 87907262.0

(22)	Date of filing: 04.08.1987

(51)

International Patent Classification (IPC):

B01J 20/ 292^{( . )}
G01N 30/ 52^{( . )}
G01N 30/ 60^{( . )}

B01D 15/ 08^{( . )}
G01N 30/ 56^{( . )}
G01N 30/ 88^{( . )}

(86)	International application number:
	PCT/US1987/001844

(87)	International publication number:
	WO 1988/007886 (20.10.1988 Gazette 1988/23)

(84)	Designated Contracting States:
	BE CH DE FR GB IT LI NL SE

(30)

Priority:

15.04.1987 US 19870038278

(71)	Applicant: VARIAN ASSOCIATES, INC.
	Palo Alto, CA 94303 (US)

(72)	Inventor:
	YANG, Frank, J. Salt Lake City, UT 94103 (US)

(74)	Representative: Cline, Roger Ledlie, et al
	EDWARD EVANS & CO. Chancery House 53-64 Chancery Lane London WC2A 1SD London WC2A 1SD (GB)

(54)	FUSED-SILICA MICROBORE PACKED CHROMATOGRAPHY COLUMN WITH CHEMICALLY MODIFIED COLUMN WALL