(19)

(11)

EP 0 604 509 A1

(12)

(43) Date of publication: 06.07.1994 Bulletin 1994/27 (21) Application number: 92919599.0 (22) Date of filing: 09.09.1992

(51) International Patent Classification (IPC):  G01N 33/ 53( . ) G01N 33/ 68( . ) G01N 33/ 573( . ) (86) International application number: PCT/GB1992/001650 (87) International publication number: WO 1993/005398 (18.03.1993 Gazette 1993/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (30) Priority: 09.09.1991 GB 19910019240 (71) Applicant: AVALON BIOSCIENCES LIMITED London SW7 2SE (GB)	(72) Inventor: BRENNAND, David, Mark 45 Bradford Road Avon BA2 5BW (GB) (74) Representative: Woods, Geoffrey Corlett  J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)