(19)

(11)

EP 0 305 429 A1

(12)

(43) Date of publication: 08.03.1989 Bulletin 1989/10 (21) Application number: 88901884.0 (22) Date of filing: 24.02.1988

(51) International Patent Classification (IPC):  G01N 21/ 65( . ) G01N 21/ 03( . ) (86) International application number: PCT/GB1988/000126 (87) International publication number: WO 1988/006725 (07.09.1988 Gazette 1988/20)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 25.02.1987 GB 19870004423 24.09.1987 GB 19870022447 24.09.1987 GB 19870022448 24.09.1987 GB 19870022450 (71) Applicant: SCIENTIFIC GENERICS LTD Cambridge , CB4 2PF (GB)	(72) Inventors: PETTIGREW, Robert, Martin Foxton Cambridgeshire (GB) NESS, Karen, Margaret, Montgomery Royston Hertfordshire SG8 6HF (GB) HOPKINS, Andrew, Ramsey Ramsey Cambridgeshire PE17 1JJ (GB) (74) Representative: Davies, Christopher Robert, et al  Frank B. Dehn & Co. Imperial House 15-19 Kingsway London WC2B 6UZ London WC2B 6UZ (GB)